Finding the Fourth Proportional to 131,830.82, 181,926.72 and 71,401.58

Step by Step Solution

1. Step 1: Write the proportion equation
   131,830.82 : 181,926.72 = 71,401.58 : x
2. Step 2: Convert to fraction form
   131,830.82/181,926.72 = 71,401.58/x
3. Step 3: Cross multiply
   131,830.82x = 181,926.72 × 71,401.58
4. Step 4: Simplify right side
   131,830.82x = 12,989,855,252.22
5. Step 5: Solve for x
   x = 12,989,855,252.22/131,830.82
6. Step 6: Final answer
   x = 98,534.28