Finding the Fourth Proportional to 131,635.82, 181,599.72 and 77,160.38

Step by Step Solution

1. Step 1: Write the proportion equation
   131,635.82 : 181,599.72 = 77,160.38 : x
2. Step 2: Convert to fraction form
   131,635.82/181,599.72 = 77,160.38/x
3. Step 3: Cross multiply
   131,635.82x = 181,599.72 × 77,160.38
4. Step 4: Simplify right side
   131,635.82x = 14,012,302,495.10
5. Step 5: Solve for x
   x = 14,012,302,495.10/131,635.82
6. Step 6: Final answer
   x = 106,447.49