Finding the Fourth Proportional to 85,610.25, 118,142.55 and 47,884.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,610.25 : 118,142.55 = 47,884.50 : x
2. Step 2: Convert to fraction form
   85,610.25/118,142.55 = 47,884.50/x
3. Step 3: Cross multiply
   85,610.25x = 118,142.55 × 47,884.50
4. Step 4: Simplify right side
   85,610.25x = 5,657,196,935.48
5. Step 5: Solve for x
   x = 5,657,196,935.48/85,610.25
6. Step 6: Final answer
   x = 66,080.84