Finding the Fourth Proportional to 12,100.32, 18,138.24 and 4,700.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,100.32 : 18,138.24 = 4,700.16 : x
2. Step 2: Convert to fraction form
   12,100.32/18,138.24 = 4,700.16/x
3. Step 3: Cross multiply
   12,100.32x = 18,138.24 × 4,700.16
4. Step 4: Simplify right side
   12,100.32x = 85,252,630.12
5. Step 5: Solve for x
   x = 85,252,630.12/12,100.32
6. Step 6: Final answer
   x = 7,045.49