Finding the Fourth Proportional to 129,711.68, 179,002.12 and 73,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   129,711.68 : 179,002.12 = 73,123.06 : x
2. Step 2: Convert to fraction form
   129,711.68/179,002.12 = 73,123.06/x
3. Step 3: Cross multiply
   129,711.68x = 179,002.12 × 73,123.06
4. Step 4: Simplify right side
   129,711.68x = 13,089,182,760.89
5. Step 5: Solve for x
   x = 13,089,182,760.89/129,711.68
6. Step 6: Final answer
   x = 100,909.82