Finding the Fourth Proportional to 56,897.57, 78,512.69 and 31,403.46

Step by Step Solution

1. Step 1: Write the proportion equation
   56,897.57 : 78,512.69 = 31,403.46 : x
2. Step 2: Convert to fraction form
   56,897.57/78,512.69 = 31,403.46/x
3. Step 3: Cross multiply
   56,897.57x = 78,512.69 × 31,403.46
4. Step 4: Simplify right side
   56,897.57x = 2,465,569,962.89
5. Step 5: Solve for x
   x = 2,465,569,962.89/56,897.57
6. Step 6: Final answer
   x = 43,333.49