Finding the Fourth Proportional to 12,468.80, 18,686.96 and 5,064.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,468.80 : 18,686.96 = 5,064.61 : x
2. Step 2: Convert to fraction form
   12,468.80/18,686.96 = 5,064.61/x
3. Step 3: Cross multiply
   12,468.80x = 18,686.96 × 5,064.61
4. Step 4: Simplify right side
   12,468.80x = 94,642,160.72
5. Step 5: Solve for x
   x = 94,642,160.72/12,468.80
6. Step 6: Final answer
   x = 7,590.32