Finding the Fourth Proportional to 12,100.86, 18,153.58 and 4,203.06

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.86 : 18,153.58 = 4,203.06 : x
2. Step 2: Convert to fraction form
   12,100.86/18,153.58 = 4,203.06/x
3. Step 3: Cross multiply
   12,100.86x = 18,153.58 × 4,203.06
4. Step 4: Simplify right side
   12,100.86x = 76,300,585.95
5. Step 5: Solve for x
   x = 76,300,585.95/12,100.86
6. Step 6: Final answer
   x = 6,305.39