Finding the Fourth Proportional to 81,387.05, 112,325.27 and 49,123.33

Step by Step Solution

1. Step 1: Write the proportion equation
   81,387.05 : 112,325.27 = 49,123.33 : x
2. Step 2: Convert to fraction form
   81,387.05/112,325.27 = 49,123.33/x
3. Step 3: Cross multiply
   81,387.05x = 112,325.27 × 49,123.33
4. Step 4: Simplify right side
   81,387.05x = 5,517,790,779.12
5. Step 5: Solve for x
   x = 5,517,790,779.12/81,387.05
6. Step 6: Final answer
   x = 67,796.92