Finding the Fourth Proportional to 140,671.56, 194,142.24 and 89,686.14

Step by Step Solution

1. Step 1: Write the proportion equation
   140,671.56 : 194,142.24 = 89,686.14 : x
2. Step 2: Convert to fraction form
   140,671.56/194,142.24 = 89,686.14/x
3. Step 3: Cross multiply
   140,671.56x = 194,142.24 × 89,686.14
4. Step 4: Simplify right side
   140,671.56x = 17,411,868,116.55
5. Step 5: Solve for x
   x = 17,411,868,116.55/140,671.56
6. Step 6: Final answer
   x = 123,776.75