Finding the Fourth Proportional to 10,152,422.10, 15,228,633.15 and 7,129,113.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,152,422.10 : 15,228,633.15 = 7,129,113.30 : x
2. Step 2: Convert to fraction form
   10,152,422.10/15,228,633.15 = 7,129,113.30/x
3. Step 3: Cross multiply
   10,152,422.10x = 15,228,633.15 × 7,129,113.30
4. Step 4: Simplify right side
   10,152,422.10x = 108,566,651,130,485.89
5. Step 5: Solve for x
   x = 108,566,651,130,485.89/10,152,422.10
6. Step 6: Final answer
   x = 10,693,669.95