Finding the Fourth Proportional to 123,591.36, 185,243.76 and 56,891.52

Step by Step Solution

1. Step 1: Write the proportion equation
   123,591.36 : 185,243.76 = 56,891.52 : x
2. Step 2: Convert to fraction form
   123,591.36/185,243.76 = 56,891.52/x
3. Step 3: Cross multiply
   123,591.36x = 185,243.76 × 56,891.52
4. Step 4: Simplify right side
   123,591.36x = 10,538,799,076.92
5. Step 5: Solve for x
   x = 10,538,799,076.92/123,591.36
6. Step 6: Final answer
   x = 85,271.33