Finding the Fourth Proportional to 12,103.43, 18,152.63 and 4,707.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.43 : 18,152.63 = 4,707.72 : x
2. Step 2: Convert to fraction form
   12,103.43/18,152.63 = 4,707.72/x
3. Step 3: Cross multiply
   12,103.43x = 18,152.63 × 4,707.72
4. Step 4: Simplify right side
   12,103.43x = 85,457,475.77
5. Step 5: Solve for x
   x = 85,457,475.77/12,103.43
6. Step 6: Final answer
   x = 7,060.60