Finding the Fourth Proportional to 8,613.56, 12,903.90 and 5,835.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,613.56 : 12,903.90 = 5,835.47 : x
2. Step 2: Convert to fraction form
   8,613.56/12,903.90 = 5,835.47/x
3. Step 3: Cross multiply
   8,613.56x = 12,903.90 × 5,835.47
4. Step 4: Simplify right side
   8,613.56x = 75,300,256.81
5. Step 5: Solve for x
   x = 75,300,256.81/8,613.56
6. Step 6: Final answer
   x = 8,742.06