Finding the Fourth Proportional to 260,092.82, 390,150.47 and 89,432.10

Step by Step Solution

1. Step 1: Write the proportion equation
   260,092.82 : 390,150.47 = 89,432.10 : x
2. Step 2: Convert to fraction form
   260,092.82/390,150.47 = 89,432.10/x
3. Step 3: Cross multiply
   260,092.82x = 390,150.47 × 89,432.10
4. Step 4: Simplify right side
   260,092.82x = 34,891,976,071.67
5. Step 5: Solve for x
   x = 34,891,976,071.67/260,092.82
6. Step 6: Final answer
   x = 134,152.01