Finding the Fourth Proportional to 5,889.63, 8,123.59 and 4,000.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,889.63 : 8,123.59 = 4,000.15 : x
2. Step 2: Convert to fraction form
   5,889.63/8,123.59 = 4,000.15/x
3. Step 3: Cross multiply
   5,889.63x = 8,123.59 × 4,000.15
4. Step 4: Simplify right side
   5,889.63x = 32,495,578.54
5. Step 5: Solve for x
   x = 32,495,578.54/5,889.63
6. Step 6: Final answer
   x = 5,517.42