Finding the Fourth Proportional to 120,042.46, 165,681.50 and 79,134.77

Step by Step Solution

1. Step 1: Write the proportion equation
   120,042.46 : 165,681.50 = 79,134.77 : x
2. Step 2: Convert to fraction form
   120,042.46/165,681.50 = 79,134.77/x
3. Step 3: Cross multiply
   120,042.46x = 165,681.50 × 79,134.77
4. Step 4: Simplify right side
   120,042.46x = 13,111,167,859.42
5. Step 5: Solve for x
   x = 13,111,167,859.42/120,042.46
6. Step 6: Final answer
   x = 109,221.09