Finding the Fourth Proportional to 68,390.71, 94,380.77 and 42,898.15

Step by Step Solution

1. Step 1: Write the proportion equation
   68,390.71 : 94,380.77 = 42,898.15 : x
2. Step 2: Convert to fraction form
   68,390.71/94,380.77 = 42,898.15/x
3. Step 3: Cross multiply
   68,390.71x = 94,380.77 × 42,898.15
4. Step 4: Simplify right side
   68,390.71x = 4,048,760,653.80
5. Step 5: Solve for x
   x = 4,048,760,653.80/68,390.71
6. Step 6: Final answer
   x = 59,200.45