Finding the Fourth Proportional to 12,402,239.43, 17,116,951.94 and 8,929,074.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,402,239.43 : 17,116,951.94 = 8,929,074.30 : x
2. Step 2: Convert to fraction form
   12,402,239.43/17,116,951.94 = 8,929,074.30/x
3. Step 3: Cross multiply
   12,402,239.43x = 17,116,951.94 × 8,929,074.30
4. Step 4: Simplify right side
   12,402,239.43x = 152,838,535,661,789.16
5. Step 5: Solve for x
   x = 152,838,535,661,789.16/12,402,239.43
6. Step 6: Final answer
   x = 12,323,462.75