Finding the Fourth Proportional to 22,499.57, 31,051.32 and 12,429.11

Step by Step Solution

1. Step 1: Write the proportion equation
   22,499.57 : 31,051.32 = 12,429.11 : x
2. Step 2: Convert to fraction form
   22,499.57/31,051.32 = 12,429.11/x
3. Step 3: Cross multiply
   22,499.57x = 31,051.32 × 12,429.11
4. Step 4: Simplify right side
   22,499.57x = 385,940,279.72
5. Step 5: Solve for x
   x = 385,940,279.72/22,499.57
6. Step 6: Final answer
   x = 17,153.23