Finding the Fourth Proportional to 912,984,401,275.35, 1,259,943,077,807.50 and 537,155,177,538.15

Step by Step Solution

1. Step 1: Write the proportion equation
   912,984,401,275.35 : 1,259,943,077,807.50 = 537,155,177,538.15 : x
2. Step 2: Convert to fraction form
   912,984,401,275.35/1,259,943,077,807.50 = 537,155,177,538.15/x
3. Step 3: Cross multiply
   912,984,401,275.35x = 1,259,943,077,807.50 × 537,155,177,538.15
4. Step 4: Simplify right side
   912,984,401,275.35x = 676,784,947,647,650,818,162,688
5. Step 5: Solve for x
   x = 676,784,947,647,650,818,162,688/912,984,401,275.35
6. Step 6: Final answer
   x = 741,288,620,815.70