Finding the Fourth Proportional to 2,909,907,399.30, 4,366,335,428.55 and 1,274,148,039.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,909,907,399.30 : 4,366,335,428.55 = 1,274,148,039.30 : x
2. Step 2: Convert to fraction form
   2,909,907,399.30/4,366,335,428.55 = 1,274,148,039.30/x
3. Step 3: Cross multiply
   2,909,907,399.30x = 4,366,335,428.55 × 1,274,148,039.30
4. Step 4: Simplify right side
   2,909,907,399.30x = 5,563,357,725,213,108,224
5. Step 5: Solve for x
   x = 5,563,357,725,213,108,224/2,909,907,399.30
6. Step 6: Final answer
   x = 1,911,867,617.01