Finding the Fourth Proportional to 81,045.32, 111,901.79 and 52,381.94

Step by Step Solution

1. Step 1: Write the proportion equation
   81,045.32 : 111,901.79 = 52,381.94 : x
2. Step 2: Convert to fraction form
   81,045.32/111,901.79 = 52,381.94/x
3. Step 3: Cross multiply
   81,045.32x = 111,901.79 × 52,381.94
4. Step 4: Simplify right side
   81,045.32x = 5,861,632,421.12
5. Step 5: Solve for x
   x = 5,861,632,421.12/81,045.32
6. Step 6: Final answer
   x = 72,325.37