Finding the Fourth Proportional to 56,581.16, 78,082.04 and 31,089.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,581.16 : 78,082.04 = 31,089.16 : x
2. Step 2: Convert to fraction form
   56,581.16/78,082.04 = 31,089.16/x
3. Step 3: Cross multiply
   56,581.16x = 78,082.04 × 31,089.16
4. Step 4: Simplify right side
   56,581.16x = 2,427,505,034.69
5. Step 5: Solve for x
   x = 2,427,505,034.69/56,581.16
6. Step 6: Final answer
   x = 42,903.06