Finding the Fourth Proportional to 9,939.07, 13,715.76 and 5,462.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.07 : 13,715.76 = 5,462.72 : x
2. Step 2: Convert to fraction form
   9,939.07/13,715.76 = 5,462.72/x
3. Step 3: Cross multiply
   9,939.07x = 13,715.76 × 5,462.72
4. Step 4: Simplify right side
   9,939.07x = 74,925,370.27
5. Step 5: Solve for x
   x = 74,925,370.27/9,939.07
6. Step 6: Final answer
   x = 7,538.47