Finding the Fourth Proportional to 12,460.86, 18,686.43 and 5,443.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,460.86 : 18,686.43 = 5,443.02 : x
2. Step 2: Convert to fraction form
   12,460.86/18,686.43 = 5,443.02/x
3. Step 3: Cross multiply
   12,460.86x = 18,686.43 × 5,443.02
4. Step 4: Simplify right side
   12,460.86x = 101,710,612.22
5. Step 5: Solve for x
   x = 101,710,612.22/12,460.86
6. Step 6: Final answer
   x = 8,162.41