Finding the Fourth Proportional to 67,938.32, 93,587.46 and 57,834.38

Step by Step Solution

1. Step 1: Write the proportion equation
   67,938.32 : 93,587.46 = 57,834.38 : x
2. Step 2: Convert to fraction form
   67,938.32/93,587.46 = 57,834.38/x
3. Step 3: Cross multiply
   67,938.32x = 93,587.46 × 57,834.38
4. Step 4: Simplify right side
   67,938.32x = 5,412,572,724.87
5. Step 5: Solve for x
   x = 5,412,572,724.87/67,938.32
6. Step 6: Final answer
   x = 79,668.92