Finding the Fourth Proportional to 81,332.30, 112,238.54 and 45,522.30

Step by Step Solution

1. Step 1: Write the proportion equation
   81,332.30 : 112,238.54 = 45,522.30 : x
2. Step 2: Convert to fraction form
   81,332.30/112,238.54 = 45,522.30/x
3. Step 3: Cross multiply
   81,332.30x = 112,238.54 × 45,522.30
4. Step 4: Simplify right side
   81,332.30x = 5,109,356,261.83
5. Step 5: Solve for x
   x = 5,109,356,261.83/81,332.30
6. Step 6: Final answer
   x = 62,820.76