Finding the Fourth Proportional to 22,762.32, 31,420.56 and 13,333.92

Step by Step Solution

1. Step 1: Write the proportion equation
   22,762.32 : 31,420.56 = 13,333.92 : x
2. Step 2: Convert to fraction form
   22,762.32/31,420.56 = 13,333.92/x
3. Step 3: Cross multiply
   22,762.32x = 31,420.56 × 13,333.92
4. Step 4: Simplify right side
   22,762.32x = 418,959,233.40
5. Step 5: Solve for x
   x = 418,959,233.40/22,762.32
6. Step 6: Final answer
   x = 18,405.82