Finding the Fourth Proportional to 12,575.06, 18,864.89 and 4,142.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,575.06 : 18,864.89 = 4,142.04 : x
2. Step 2: Convert to fraction form
   12,575.06/18,864.89 = 4,142.04/x
3. Step 3: Cross multiply
   12,575.06x = 18,864.89 × 4,142.04
4. Step 4: Simplify right side
   12,575.06x = 78,139,128.98
5. Step 5: Solve for x
   x = 78,139,128.98/12,575.06
6. Step 6: Final answer
   x = 6,213.82