Finding the Fourth Proportional to 13,123.59, 18,109.94 and 7,301.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.59 : 18,109.94 = 7,301.72 : x
2. Step 2: Convert to fraction form
   13,123.59/18,109.94 = 7,301.72/x
3. Step 3: Cross multiply
   13,123.59x = 18,109.94 × 7,301.72
4. Step 4: Simplify right side
   13,123.59x = 132,233,584.04
5. Step 5: Solve for x
   x = 132,233,584.04/13,123.59
6. Step 6: Final answer
   x = 10,076.02