Finding the Fourth Proportional to 8,592,970.50, 12,895,612.20 and 3,128,053.89

Step by Step Solution

1. Step 1: Write the proportion equation
   8,592,970.50 : 12,895,612.20 = 3,128,053.89 : x
2. Step 2: Convert to fraction form
   8,592,970.50/12,895,612.20 = 3,128,053.89/x
3. Step 3: Cross multiply
   8,592,970.50x = 12,895,612.20 × 3,128,053.89
4. Step 4: Simplify right side
   8,592,970.50x = 40,338,169,906,141.46
5. Step 5: Solve for x
   x = 40,338,169,906,141.46/8,592,970.50
6. Step 6: Final answer
   x = 4,694,321.94