Finding the Fourth Proportional to 9,123.18, 13,675.23 and 5,169.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.18 : 13,675.23 = 5,169.48 : x
2. Step 2: Convert to fraction form
   9,123.18/13,675.23 = 5,169.48/x
3. Step 3: Cross multiply
   9,123.18x = 13,675.23 × 5,169.48
4. Step 4: Simplify right side
   9,123.18x = 70,693,827.98
5. Step 5: Solve for x
   x = 70,693,827.98/9,123.18
6. Step 6: Final answer
   x = 7,748.81