Finding the Fourth Proportional to 131,978.46, 182,139.94 and 75,388.62

Step by Step Solution

1. Step 1: Write the proportion equation
   131,978.46 : 182,139.94 = 75,388.62 : x
2. Step 2: Convert to fraction form
   131,978.46/182,139.94 = 75,388.62/x
3. Step 3: Cross multiply
   131,978.46x = 182,139.94 × 75,388.62
4. Step 4: Simplify right side
   131,978.46x = 13,731,278,723.48
5. Step 5: Solve for x
   x = 13,731,278,723.48/131,978.46
6. Step 6: Final answer
   x = 104,041.82