Finding the Fourth Proportional to 9,513,829.30, 13,129,092.78 and 5,162,915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513,829.30 : 13,129,092.78 = 5,162,915.50 : x
2. Step 2: Convert to fraction form
   9,513,829.30/13,129,092.78 = 5,162,915.50/x
3. Step 3: Cross multiply
   9,513,829.30x = 13,129,092.78 × 5,162,915.50
4. Step 4: Simplify right side
   9,513,829.30x = 67,784,396,614,800.09
5. Step 5: Solve for x
   x = 67,784,396,614,800.09/9,513,829.30
6. Step 6: Final answer
   x = 7,124,827.92