Finding the Fourth Proportional to 89,178.61, 123,066.64 and 48,342.61

Step by Step Solution

1. Step 1: Write the proportion equation
   89,178.61 : 123,066.64 = 48,342.61 : x
2. Step 2: Convert to fraction form
   89,178.61/123,066.64 = 48,342.61/x
3. Step 3: Cross multiply
   89,178.61x = 123,066.64 × 48,342.61
4. Step 4: Simplify right side
   89,178.61x = 5,949,361,966.20
5. Step 5: Solve for x
   x = 5,949,361,966.20/89,178.61
6. Step 6: Final answer
   x = 66,712.88