Finding the Fourth Proportional to 67,007.90, 92,464.00 and 40,149.72

Step by Step Solution

1. Step 1: Write the proportion equation
   67,007.90 : 92,464.00 = 40,149.72 : x
2. Step 2: Convert to fraction form
   67,007.90/92,464.00 = 40,149.72/x
3. Step 3: Cross multiply
   67,007.90x = 92,464.00 × 40,149.72
4. Step 4: Simplify right side
   67,007.90x = 3,712,403,047.01
5. Step 5: Solve for x
   x = 3,712,403,047.01/67,007.90
6. Step 6: Final answer
   x = 55,402.47