Finding the Fourth Proportional to 85,978.72, 118,656.24 and 48,255.52

Step by Step Solution

1. Step 1: Write the proportion equation
   85,978.72 : 118,656.24 = 48,255.52 : x
2. Step 2: Convert to fraction form
   85,978.72/118,656.24 = 48,255.52/x
3. Step 3: Cross multiply
   85,978.72x = 118,656.24 × 48,255.52
4. Step 4: Simplify right side
   85,978.72x = 5,725,818,562.44
5. Step 5: Solve for x
   x = 5,725,818,562.44/85,978.72
6. Step 6: Final answer
   x = 66,595.76