Finding the Fourth Proportional to 9,842.28, 14,763.84 and 2,916.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,842.28 : 14,763.84 = 2,916.72 : x
2. Step 2: Convert to fraction form
   9,842.28/14,763.84 = 2,916.72/x
3. Step 3: Cross multiply
   9,842.28x = 14,763.84 × 2,916.72
4. Step 4: Simplify right side
   9,842.28x = 43,061,987.40
5. Step 5: Solve for x
   x = 43,061,987.40/9,842.28
6. Step 6: Final answer
   x = 4,375.20