Finding the Fourth Proportional to 131,443.60, 181,392.25 and 71,014.22

Step by Step Solution

1. Step 1: Write the proportion equation
   131,443.60 : 181,392.25 = 71,014.22 : x
2. Step 2: Convert to fraction form
   131,443.60/181,392.25 = 71,014.22/x
3. Step 3: Cross multiply
   131,443.60x = 181,392.25 × 71,014.22
4. Step 4: Simplify right side
   131,443.60x = 12,881,428,871.85
5. Step 5: Solve for x
   x = 12,881,428,871.85/131,443.60
6. Step 6: Final answer
   x = 97,999.67