Finding the Fourth Proportional to 81,011.52, 111,816.42 and 48,341.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,011.52 : 111,816.42 = 48,341.10 : x
2. Step 2: Convert to fraction form
   81,011.52/111,816.42 = 48,341.10/x
3. Step 3: Cross multiply
   81,011.52x = 111,816.42 × 48,341.10
4. Step 4: Simplify right side
   81,011.52x = 5,405,328,740.86
5. Step 5: Solve for x
   x = 5,405,328,740.86/81,011.52
6. Step 6: Final answer
   x = 66,722.96