Finding the Fourth Proportional to 89,645.83, 123,656.67 and 55,196.11

Step by Step Solution

1. Step 1: Write the proportion equation
   89,645.83 : 123,656.67 = 55,196.11 : x
2. Step 2: Convert to fraction form
   89,645.83/123,656.67 = 55,196.11/x
3. Step 3: Cross multiply
   89,645.83x = 123,656.67 × 55,196.11
4. Step 4: Simplify right side
   89,645.83x = 6,825,367,159.55
5. Step 5: Solve for x
   x = 6,825,367,159.55/89,645.83
6. Step 6: Final answer
   x = 76,137.03