Finding the Fourth Proportional to 57,238.74, 78,988.05 and 31,744.71

Step by Step Solution

1. Step 1: Write the proportion equation
   57,238.74 : 78,988.05 = 31,744.71 : x
2. Step 2: Convert to fraction form
   57,238.74/78,988.05 = 31,744.71/x
3. Step 3: Cross multiply
   57,238.74x = 78,988.05 × 31,744.71
4. Step 4: Simplify right side
   57,238.74x = 2,507,452,740.72
5. Step 5: Solve for x
   x = 2,507,452,740.72/57,238.74
6. Step 6: Final answer
   x = 43,806.92