Finding the Fourth Proportional to 56,802.38, 78,387.83 and 31,309.73

Step by Step Solution

1. Step 1: Write the proportion equation
   56,802.38 : 78,387.83 = 31,309.73 : x
2. Step 2: Convert to fraction form
   56,802.38/78,387.83 = 31,309.73/x
3. Step 3: Cross multiply
   56,802.38x = 78,387.83 × 31,309.73
4. Step 4: Simplify right side
   56,802.38x = 2,454,301,244.10
5. Step 5: Solve for x
   x = 2,454,301,244.10/56,802.38
6. Step 6: Final answer
   x = 43,207.72