Finding the Fourth Proportional to 56,883.27, 78,499.17 and 31,389.96

Step by Step Solution

1. Step 1: Write the proportion equation
   56,883.27 : 78,499.17 = 31,389.96 : x
2. Step 2: Convert to fraction form
   56,883.27/78,499.17 = 31,389.96/x
3. Step 3: Cross multiply
   56,883.27x = 78,499.17 × 31,389.96
4. Step 4: Simplify right side
   56,883.27x = 2,464,085,806.33
5. Step 5: Solve for x
   x = 2,464,085,806.33/56,883.27
6. Step 6: Final answer
   x = 43,318.29