Finding the Fourth Proportional to 10,012.76, 15,018.72 and 2,516.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,012.76 : 15,018.72 = 2,516.30 : x
2. Step 2: Convert to fraction form
   10,012.76/15,018.72 = 2,516.30/x
3. Step 3: Cross multiply
   10,012.76x = 15,018.72 × 2,516.30
4. Step 4: Simplify right side
   10,012.76x = 37,791,605.14
5. Step 5: Solve for x
   x = 37,791,605.14/10,012.76
6. Step 6: Final answer
   x = 3,774.34