Finding the Fourth Proportional to 56,938.02, 78,573.33 and 31,442.91

Step by Step Solution

1. Step 1: Write the proportion equation
   56,938.02 : 78,573.33 = 31,442.91 : x
2. Step 2: Convert to fraction form
   56,938.02/78,573.33 = 31,442.91/x
3. Step 3: Cross multiply
   56,938.02x = 78,573.33 × 31,442.91
4. Step 4: Simplify right side
   56,938.02x = 2,470,574,143.59
5. Step 5: Solve for x
   x = 2,470,574,143.59/56,938.02
6. Step 6: Final answer
   x = 43,390.59