Finding the Fourth Proportional to 10,890.87, 15,029.29 and 5,922.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.87 : 15,029.29 = 5,922.87 : x
2. Step 2: Convert to fraction form
   10,890.87/15,029.29 = 5,922.87/x
3. Step 3: Cross multiply
   10,890.87x = 15,029.29 × 5,922.87
4. Step 4: Simplify right side
   10,890.87x = 89,016,530.86
5. Step 5: Solve for x
   x = 89,016,530.86/10,890.87
6. Step 6: Final answer
   x = 8,173.50