Finding the Fourth Proportional to 9,402.86, 14,106.15 and 4,208.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,402.86 : 14,106.15 = 4,208.78 : x
2. Step 2: Convert to fraction form
   9,402.86/14,106.15 = 4,208.78/x
3. Step 3: Cross multiply
   9,402.86x = 14,106.15 × 4,208.78
4. Step 4: Simplify right side
   9,402.86x = 59,369,682.00
5. Step 5: Solve for x
   x = 59,369,682.00/9,402.86
6. Step 6: Final answer
   x = 6,314.00