Finding the Fourth Proportional to 123,551.15, 185,349.90 and 56,087.91

Step by Step Solution

1. Step 1: Write the proportion equation
   123,551.15 : 185,349.90 = 56,087.91 : x
2. Step 2: Convert to fraction form
   123,551.15/185,349.90 = 56,087.91/x
3. Step 3: Cross multiply
   123,551.15x = 185,349.90 × 56,087.91
4. Step 4: Simplify right side
   123,551.15x = 10,395,888,509.71
5. Step 5: Solve for x
   x = 10,395,888,509.71/123,551.15
6. Step 6: Final answer
   x = 84,142.39