Finding the Fourth Proportional to 17,391,870.72, 25,970,689.08 and 14,203,321.92

Step by Step Solution

1. Step 1: Write the proportion equation
   17,391,870.72 : 25,970,689.08 = 14,203,321.92 : x
2. Step 2: Convert to fraction form
   17,391,870.72/25,970,689.08 = 14,203,321.92/x
3. Step 3: Cross multiply
   17,391,870.72x = 25,970,689.08 × 14,203,321.92
4. Step 4: Simplify right side
   17,391,870.72x = 368,870,057,487,468.62
5. Step 5: Solve for x
   x = 368,870,057,487,468.62/17,391,870.72
6. Step 6: Final answer
   x = 21,209,337.59