Finding the Fourth Proportional to 99,648.24, 149,470.47 and 40,443.18

Step by Step Solution

1. Step 1: Write the proportion equation
   99,648.24 : 149,470.47 = 40,443.18 : x
2. Step 2: Convert to fraction form
   99,648.24/149,470.47 = 40,443.18/x
3. Step 3: Cross multiply
   99,648.24x = 149,470.47 × 40,443.18
4. Step 4: Simplify right side
   99,648.24x = 6,045,061,122.89
5. Step 5: Solve for x
   x = 6,045,061,122.89/99,648.24
6. Step 6: Final answer
   x = 60,664.00