Finding the Fourth Proportional to 131,648.02, 181,673.72 and 71,218.52

Step by Step Solution

1. Step 1: Write the proportion equation
   131,648.02 : 181,673.72 = 71,218.52 : x
2. Step 2: Convert to fraction form
   131,648.02/181,673.72 = 71,218.52/x
3. Step 3: Cross multiply
   131,648.02x = 181,673.72 × 71,218.52
4. Step 4: Simplify right side
   131,648.02x = 12,938,533,145.18
5. Step 5: Solve for x
   x = 12,938,533,145.18/131,648.02
6. Step 6: Final answer
   x = 98,281.26