Finding the Fourth Proportional to 10,130.05, 15,221.81 and 5,453.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,130.05 : 15,221.81 = 5,453.52 : x
2. Step 2: Convert to fraction form
   10,130.05/15,221.81 = 5,453.52/x
3. Step 3: Cross multiply
   10,130.05x = 15,221.81 × 5,453.52
4. Step 4: Simplify right side
   10,130.05x = 83,012,445.27
5. Step 5: Solve for x
   x = 83,012,445.27/10,130.05
6. Step 6: Final answer
   x = 8,194.67