Finding the Fourth Proportional to 56,938.01, 78,574.86 and 31,443.66

Step by Step Solution

1. Step 1: Write the proportion equation
   56,938.01 : 78,574.86 = 31,443.66 : x
2. Step 2: Convert to fraction form
   56,938.01/78,574.86 = 31,443.66/x
3. Step 3: Cross multiply
   56,938.01x = 78,574.86 × 31,443.66
4. Step 4: Simplify right side
   56,938.01x = 2,470,681,182.39
5. Step 5: Solve for x
   x = 2,470,681,182.39/56,938.01
6. Step 6: Final answer
   x = 43,392.48