Finding the Fourth Proportional to 10,613.52, 14,645.34 and 5,898.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,613.52 : 14,645.34 = 5,898.78 : x
2. Step 2: Convert to fraction form
   10,613.52/14,645.34 = 5,898.78/x
3. Step 3: Cross multiply
   10,613.52x = 14,645.34 × 5,898.78
4. Step 4: Simplify right side
   10,613.52x = 86,389,638.69
5. Step 5: Solve for x
   x = 86,389,638.69/10,613.52
6. Step 6: Final answer
   x = 8,139.58