Finding the Fourth Proportional to 89,773.32, 123,881.61 and 49,485

Step by Step Solution

1. Step 1: Write the proportion equation
   89,773.32 : 123,881.61 = 49,485 : x
2. Step 2: Convert to fraction form
   89,773.32/123,881.61 = 49,485/x
3. Step 3: Cross multiply
   89,773.32x = 123,881.61 × 49,485
4. Step 4: Simplify right side
   89,773.32x = 6,130,281,470.85
5. Step 5: Solve for x
   x = 6,130,281,470.85/89,773.32
6. Step 6: Final answer
   x = 68,286.23