Finding the Fourth Proportional to 137,452.02, 189,684.45 and 89,677.14

Step by Step Solution

1. Step 1: Write the proportion equation
   137,452.02 : 189,684.45 = 89,677.14 : x
2. Step 2: Convert to fraction form
   137,452.02/189,684.45 = 89,677.14/x
3. Step 3: Cross multiply
   137,452.02x = 189,684.45 × 89,677.14
4. Step 4: Simplify right side
   137,452.02x = 17,010,358,978.47
5. Step 5: Solve for x
   x = 17,010,358,978.47/137,452.02
6. Step 6: Final answer
   x = 123,754.89