Finding the Fourth Proportional to 81,538.56, 112,419.02 and 52,807.46

Step by Step Solution

1. Step 1: Write the proportion equation
   81,538.56 : 112,419.02 = 52,807.46 : x
2. Step 2: Convert to fraction form
   81,538.56/112,419.02 = 52,807.46/x
3. Step 3: Cross multiply
   81,538.56x = 112,419.02 × 52,807.46
4. Step 4: Simplify right side
   81,538.56x = 5,936,562,471.81
5. Step 5: Solve for x
   x = 5,936,562,471.81/81,538.56
6. Step 6: Final answer
   x = 72,806.81