Finding the Fourth Proportional to 22,564.32, 31,138.94 and 12,492.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,564.32 : 31,138.94 = 12,492.93 : x
2. Step 2: Convert to fraction form
   22,564.32/31,138.94 = 12,492.93/x
3. Step 3: Cross multiply
   22,564.32x = 31,138.94 × 12,492.93
4. Step 4: Simplify right side
   22,564.32x = 389,016,597.69
5. Step 5: Solve for x
   x = 389,016,597.69/22,564.32
6. Step 6: Final answer
   x = 17,240.34