Finding the Fourth Proportional to 9,047.35, 13,572.63 and 3,123.77

Step by Step Solution

1. Step 1: Write the proportion equation
   9,047.35 : 13,572.63 = 3,123.77 : x
2. Step 2: Convert to fraction form
   9,047.35/13,572.63 = 3,123.77/x
3. Step 3: Cross multiply
   9,047.35x = 13,572.63 × 3,123.77
4. Step 4: Simplify right side
   9,047.35x = 42,397,706.55
5. Step 5: Solve for x
   x = 42,397,706.55/9,047.35
6. Step 6: Final answer
   x = 4,686.20