Finding the Fourth Proportional to 10,876.46, 15,005.90 and 7,518.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,876.46 : 15,005.90 = 7,518.06 : x
2. Step 2: Convert to fraction form
   10,876.46/15,005.90 = 7,518.06/x
3. Step 3: Cross multiply
   10,876.46x = 15,005.90 × 7,518.06
4. Step 4: Simplify right side
   10,876.46x = 112,815,218.96
5. Step 5: Solve for x
   x = 112,815,218.96/10,876.46
6. Step 6: Final answer
   x = 10,372.43