Finding the Fourth Proportional to 10,885.76, 15,022.32 and 5,917.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,885.76 : 15,022.32 = 5,917.76 : x
2. Step 2: Convert to fraction form
   10,885.76/15,022.32 = 5,917.76/x
3. Step 3: Cross multiply
   10,885.76x = 15,022.32 × 5,917.76
4. Step 4: Simplify right side
   10,885.76x = 88,898,484.40
5. Step 5: Solve for x
   x = 88,898,484.40/10,885.76
6. Step 6: Final answer
   x = 8,166.49