Finding the Fourth Proportional to 11,938.40, 16,470.52 and 7,399.01

Step by Step Solution

1. Step 1: Write the proportion equation
   11,938.40 : 16,470.52 = 7,399.01 : x
2. Step 2: Convert to fraction form
   11,938.40/16,470.52 = 7,399.01/x
3. Step 3: Cross multiply
   11,938.40x = 16,470.52 × 7,399.01
4. Step 4: Simplify right side
   11,938.40x = 121,865,461.92
5. Step 5: Solve for x
   x = 121,865,461.92/11,938.40
6. Step 6: Final answer
   x = 10,207.86