Finding the Fourth Proportional to 92,693.52, 138,932.82 and 42,668.64

Step by Step Solution

1. Step 1: Write the proportion equation
   92,693.52 : 138,932.82 = 42,668.64 : x
2. Step 2: Convert to fraction form
   92,693.52/138,932.82 = 42,668.64/x
3. Step 3: Cross multiply
   92,693.52x = 138,932.82 × 42,668.64
4. Step 4: Simplify right side
   92,693.52x = 5,928,074,480.76
5. Step 5: Solve for x
   x = 5,928,074,480.76/92,693.52
6. Step 6: Final answer
   x = 63,953.49