Finding the Fourth Proportional to 132,061.76, 198,090.56 and 53,173.92

Step by Step Solution

1. Step 1: Write the proportion equation
   132,061.76 : 198,090.56 = 53,173.92 : x
2. Step 2: Convert to fraction form
   132,061.76/198,090.56 = 53,173.92/x
3. Step 3: Cross multiply
   132,061.76x = 198,090.56 × 53,173.92
4. Step 4: Simplify right side
   132,061.76x = 10,533,251,590.20
5. Step 5: Solve for x
   x = 10,533,251,590.20/132,061.76
6. Step 6: Final answer
   x = 79,760.04