Finding the Fourth Proportional to 131,498.89, 181,424.14 and 74,870.17

Step by Step Solution

1. Step 1: Write the proportion equation
   131,498.89 : 181,424.14 = 74,870.17 : x
2. Step 2: Convert to fraction form
   131,498.89/181,424.14 = 74,870.17/x
3. Step 3: Cross multiply
   131,498.89x = 181,424.14 × 74,870.17
4. Step 4: Simplify right side
   131,498.89x = 13,583,256,203.90
5. Step 5: Solve for x
   x = 13,583,256,203.90/131,498.89
6. Step 6: Final answer
   x = 103,295.60