Finding the Fourth Proportional to 12,518.79, 18,761.98 and 5,114.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,518.79 : 18,761.98 = 5,114.76 : x
2. Step 2: Convert to fraction form
   12,518.79/18,761.98 = 5,114.76/x
3. Step 3: Cross multiply
   12,518.79x = 18,761.98 × 5,114.76
4. Step 4: Simplify right side
   12,518.79x = 95,963,024.82
5. Step 5: Solve for x
   x = 95,963,024.82/12,518.79
6. Step 6: Final answer
   x = 7,665.52