Finding the Fourth Proportional to 131,842.41, 181,942.56 and 71,412.86

Step by Step Solution

1. Step 1: Write the proportion equation
   131,842.41 : 181,942.56 = 71,412.86 : x
2. Step 2: Convert to fraction form
   131,842.41/181,942.56 = 71,412.86/x
3. Step 3: Cross multiply
   131,842.41x = 181,942.56 × 71,412.86
4. Step 4: Simplify right side
   131,842.41x = 12,993,039,158.34
5. Step 5: Solve for x
   x = 12,993,039,158.34/131,842.41
6. Step 6: Final answer
   x = 98,549.77