Finding the Fourth Proportional to 20,591.42, 30,889.76 and 5,598.86

Step by Step Solution

1. Step 1: Write the proportion equation
   20,591.42 : 30,889.76 = 5,598.86 : x
2. Step 2: Convert to fraction form
   20,591.42/30,889.76 = 5,598.86/x
3. Step 3: Cross multiply
   20,591.42x = 30,889.76 × 5,598.86
4. Step 4: Simplify right side
   20,591.42x = 172,947,259.23
5. Step 5: Solve for x
   x = 172,947,259.23/20,591.42
6. Step 6: Final answer
   x = 8,399.00