Finding the Fourth Proportional to 132,100.83, 198,148.95 and 53,213.04

Step by Step Solution

1. Step 1: Write the proportion equation
   132,100.83 : 198,148.95 = 53,213.04 : x
2. Step 2: Convert to fraction form
   132,100.83/198,148.95 = 53,213.04/x
3. Step 3: Cross multiply
   132,100.83x = 198,148.95 × 53,213.04
4. Step 4: Simplify right side
   132,100.83x = 10,544,108,002.31
5. Step 5: Solve for x
   x = 10,544,108,002.31/132,100.83
6. Step 6: Final answer
   x = 79,818.64