Finding the Fourth Proportional to 89,501.85, 123,481.80 and 55,498.10

Step by Step Solution

1. Step 1: Write the proportion equation
   89,501.85 : 123,481.80 = 55,498.10 : x
2. Step 2: Convert to fraction form
   89,501.85/123,481.80 = 55,498.10/x
3. Step 3: Cross multiply
   89,501.85x = 123,481.80 × 55,498.10
4. Step 4: Simplify right side
   89,501.85x = 6,853,005,284.58
5. Step 5: Solve for x
   x = 6,853,005,284.58/89,501.85
6. Step 6: Final answer
   x = 76,568.31