Finding the Fourth Proportional to 71,025.94, 98,012.55 and 40,789.99

Step by Step Solution

1. Step 1: Write the proportion equation
   71,025.94 : 98,012.55 = 40,789.99 : x
2. Step 2: Convert to fraction form
   71,025.94/98,012.55 = 40,789.99/x
3. Step 3: Cross multiply
   71,025.94x = 98,012.55 × 40,789.99
4. Step 4: Simplify right side
   71,025.94x = 3,997,930,934.37
5. Step 5: Solve for x
   x = 3,997,930,934.37/71,025.94
6. Step 6: Final answer
   x = 56,288.32