Finding the Fourth Proportional to 10,748.78, 14,838.35 and 7,169.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,748.78 : 14,838.35 = 7,169.73 : x
2. Step 2: Convert to fraction form
   10,748.78/14,838.35 = 7,169.73/x
3. Step 3: Cross multiply
   10,748.78x = 14,838.35 × 7,169.73
4. Step 4: Simplify right side
   10,748.78x = 106,386,963.15
5. Step 5: Solve for x
   x = 106,386,963.15/10,748.78
6. Step 6: Final answer
   x = 9,897.58