Finding the Fourth Proportional to 123,468.17, 170,398.69 and 89,041.34

Step by Step Solution

1. Step 1: Write the proportion equation
   123,468.17 : 170,398.69 = 89,041.34 : x
2. Step 2: Convert to fraction form
   123,468.17/170,398.69 = 89,041.34/x
3. Step 3: Cross multiply
   123,468.17x = 170,398.69 × 89,041.34
4. Step 4: Simplify right side
   123,468.17x = 15,172,527,895.24
5. Step 5: Solve for x
   x = 15,172,527,895.24/123,468.17
6. Step 6: Final answer
   x = 122,886.15