Finding the Fourth Proportional to 12,803.01, 17,667.52 and 7,138.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,803.01 : 17,667.52 = 7,138.38 : x
2. Step 2: Convert to fraction form
   12,803.01/17,667.52 = 7,138.38/x
3. Step 3: Cross multiply
   12,803.01x = 17,667.52 × 7,138.38
4. Step 4: Simplify right side
   12,803.01x = 126,117,471.42
5. Step 5: Solve for x
   x = 126,117,471.42/12,803.01
6. Step 6: Final answer
   x = 9,850.61