Finding the Fourth Proportional to 10,748.43, 14,845.39 and 9,802.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,748.43 : 14,845.39 = 9,802.55 : x
2. Step 2: Convert to fraction form
   10,748.43/14,845.39 = 9,802.55/x
3. Step 3: Cross multiply
   10,748.43x = 14,845.39 × 9,802.55
4. Step 4: Simplify right side
   10,748.43x = 145,522,690.35
5. Step 5: Solve for x
   x = 145,522,690.35/10,748.43
6. Step 6: Final answer
   x = 13,538.97