Finding the Fourth Proportional to 5,591.54, 8,420.78 and 5,093.34

Step by Step Solution

1. Step 1: Write the proportion equation
   5,591.54 : 8,420.78 = 5,093.34 : x
2. Step 2: Convert to fraction form
   5,591.54/8,420.78 = 5,093.34/x
3. Step 3: Cross multiply
   5,591.54x = 8,420.78 × 5,093.34
4. Step 4: Simplify right side
   5,591.54x = 42,889,895.61
5. Step 5: Solve for x
   x = 42,889,895.61/5,591.54
6. Step 6: Final answer
   x = 7,670.50