Finding the Fourth Proportional to 81,160.48, 111,910.30 and 52,442.34

Step by Step Solution

1. Step 1: Write the proportion equation
   81,160.48 : 111,910.30 = 52,442.34 : x
2. Step 2: Convert to fraction form
   81,160.48/111,910.30 = 52,442.34/x
3. Step 3: Cross multiply
   81,160.48x = 111,910.30 × 52,442.34
4. Step 4: Simplify right side
   81,160.48x = 5,868,838,002.10
5. Step 5: Solve for x
   x = 5,868,838,002.10/81,160.48
6. Step 6: Final answer
   x = 72,311.52