Finding the Fourth Proportional to 132,188.76, 198,308.56 and 53,310.96

Step by Step Solution

1. Step 1: Write the proportion equation
   132,188.76 : 198,308.56 = 53,310.96 : x
2. Step 2: Convert to fraction form
   132,188.76/198,308.56 = 53,310.96/x
3. Step 3: Cross multiply
   132,188.76x = 198,308.56 × 53,310.96
4. Step 4: Simplify right side
   132,188.76x = 10,572,019,709.82
5. Step 5: Solve for x
   x = 10,572,019,709.82/132,188.76
6. Step 6: Final answer
   x = 79,976.69