Finding the Fourth Proportional to 9,140.18, 12,613.50 and 5,602.70

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.18 : 12,613.50 = 5,602.70 : x
2. Step 2: Convert to fraction form
   9,140.18/12,613.50 = 5,602.70/x
3. Step 3: Cross multiply
   9,140.18x = 12,613.50 × 5,602.70
4. Step 4: Simplify right side
   9,140.18x = 70,669,687.98
5. Step 5: Solve for x
   x = 70,669,687.98/9,140.18
6. Step 6: Final answer
   x = 7,731.77