Finding the Fourth Proportional to 56,862.56, 78,470.94 and 31,369.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,862.56 : 78,470.94 = 31,369.83 : x
2. Step 2: Convert to fraction form
   56,862.56/78,470.94 = 31,369.83/x
3. Step 3: Cross multiply
   56,862.56x = 78,470.94 × 31,369.83
4. Step 4: Simplify right side
   56,862.56x = 2,461,620,047.74
5. Step 5: Solve for x
   x = 2,461,620,047.74/56,862.56
6. Step 6: Final answer
   x = 43,290.70