Finding the Fourth Proportional to 9,123.48, 13,665.42 and 5,602.80

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.48 : 13,665.42 = 5,602.80 : x
2. Step 2: Convert to fraction form
   9,123.48/13,665.42 = 5,602.80/x
3. Step 3: Cross multiply
   9,123.48x = 13,665.42 × 5,602.80
4. Step 4: Simplify right side
   9,123.48x = 76,564,615.18
5. Step 5: Solve for x
   x = 76,564,615.18/9,123.48
6. Step 6: Final answer
   x = 8,392.04