Finding the Fourth Proportional to 56,819.12, 78,406.83 and 31,324.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,819.12 : 78,406.83 = 31,324.16 : x
2. Step 2: Convert to fraction form
   56,819.12/78,406.83 = 31,324.16/x
3. Step 3: Cross multiply
   56,819.12x = 78,406.83 × 31,324.16
4. Step 4: Simplify right side
   56,819.12x = 2,456,028,088.01
5. Step 5: Solve for x
   x = 2,456,028,088.01/56,819.12
6. Step 6: Final answer
   x = 43,225.38