Finding the Fourth Proportional to 22,468,487.49, 31,006,437.17 and 12,155,213.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,468,487.49 : 31,006,437.17 = 12,155,213.31 : x
2. Step 2: Convert to fraction form
   22,468,487.49/31,006,437.17 = 12,155,213.31/x
3. Step 3: Cross multiply
   22,468,487.49x = 31,006,437.17 × 12,155,213.31
4. Step 4: Simplify right side
   22,468,487.49x = 376,889,857,723,686.69
5. Step 5: Solve for x
   x = 376,889,857,723,686.69/22,468,487.49
6. Step 6: Final answer
   x = 16,774,153.48