Finding the Fourth Proportional to 9,938.88, 14,894.43 and 7,470.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.88 : 14,894.43 = 7,470.81 : x
2. Step 2: Convert to fraction form
   9,938.88/14,894.43 = 7,470.81/x
3. Step 3: Cross multiply
   9,938.88x = 14,894.43 × 7,470.81
4. Step 4: Simplify right side
   9,938.88x = 111,273,456.59
5. Step 5: Solve for x
   x = 111,273,456.59/9,938.88
6. Step 6: Final answer
   x = 11,195.77