Finding the Fourth Proportional to 10,594.78, 15,874.89 and 5,393.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,594.78 : 15,874.89 = 5,393.50 : x
2. Step 2: Convert to fraction form
   10,594.78/15,874.89 = 5,393.50/x
3. Step 3: Cross multiply
   10,594.78x = 15,874.89 × 5,393.50
4. Step 4: Simplify right side
   10,594.78x = 85,621,219.22
5. Step 5: Solve for x
   x = 85,621,219.22/10,594.78
6. Step 6: Final answer
   x = 8,081.45