Finding the Fourth Proportional to 123,432.77, 185,000.25 and 56,781.47

Step by Step Solution

1. Step 1: Write the proportion equation
   123,432.77 : 185,000.25 = 56,781.47 : x
2. Step 2: Convert to fraction form
   123,432.77/185,000.25 = 56,781.47/x
3. Step 3: Cross multiply
   123,432.77x = 185,000.25 × 56,781.47
4. Step 4: Simplify right side
   123,432.77x = 10,504,586,145.37
5. Step 5: Solve for x
   x = 10,504,586,145.37/123,432.77
6. Step 6: Final answer
   x = 85,103.71