Finding the Fourth Proportional to 9,523.58, 13,142.76 and 5,545.40

Step by Step Solution

1. Step 1: Write the proportion equation
   9,523.58 : 13,142.76 = 5,545.40 : x
2. Step 2: Convert to fraction form
   9,523.58/13,142.76 = 5,545.40/x
3. Step 3: Cross multiply
   9,523.58x = 13,142.76 × 5,545.40
4. Step 4: Simplify right side
   9,523.58x = 72,881,861.30
5. Step 5: Solve for x
   x = 72,881,861.30/9,523.58
6. Step 6: Final answer
   x = 7,652.78