Finding the Fourth Proportional to 56,866.38, 78,490.02 and 32,990.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,866.38 : 78,490.02 = 32,990.04 : x
2. Step 2: Convert to fraction form
   56,866.38/78,490.02 = 32,990.04/x
3. Step 3: Cross multiply
   56,866.38x = 78,490.02 × 32,990.04
4. Step 4: Simplify right side
   56,866.38x = 2,589,388,899.40
5. Step 5: Solve for x
   x = 2,589,388,899.40/56,866.38
6. Step 6: Final answer
   x = 45,534.62