Finding the Fourth Proportional to 21,748,647.93, 30,012,106.69 and 11,959,504.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,748,647.93 : 30,012,106.69 = 11,959,504.71 : x
2. Step 2: Convert to fraction form
   21,748,647.93/30,012,106.69 = 11,959,504.71/x
3. Step 3: Cross multiply
   21,748,647.93x = 30,012,106.69 × 11,959,504.71
4. Step 4: Simplify right side
   21,748,647.93x = 358,929,931,151,209.31
5. Step 5: Solve for x
   x = 358,929,931,151,209.31/21,748,647.93
6. Step 6: Final answer
   x = 16,503,551.50