Finding the Fourth Proportional to 57,012.96, 78,677.76 and 31,862.46

Step by Step Solution

1. Step 1: Write the proportion equation
   57,012.96 : 78,677.76 = 31,862.46 : x
2. Step 2: Convert to fraction form
   57,012.96/78,677.76 = 31,862.46/x
3. Step 3: Cross multiply
   57,012.96x = 78,677.76 × 31,862.46
4. Step 4: Simplify right side
   57,012.96x = 2,506,866,980.89
5. Step 5: Solve for x
   x = 2,506,866,980.89/57,012.96
6. Step 6: Final answer
   x = 43,970.13