Finding the Fourth Proportional to 85,799.37, 118,300.17 and 73,842.15

Step by Step Solution

1. Step 1: Write the proportion equation
   85,799.37 : 118,300.17 = 73,842.15 : x
2. Step 2: Convert to fraction form
   85,799.37/118,300.17 = 73,842.15/x
3. Step 3: Cross multiply
   85,799.37x = 118,300.17 × 73,842.15
4. Step 4: Simplify right side
   85,799.37x = 8,735,538,898.17
5. Step 5: Solve for x
   x = 8,735,538,898.17/85,799.37
6. Step 6: Final answer
   x = 101,813.56