Finding the Fourth Proportional to 10,538.28, 15,812.82 and 4,698.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,538.28 : 15,812.82 = 4,698.72 : x
2. Step 2: Convert to fraction form
   10,538.28/15,812.82 = 4,698.72/x
3. Step 3: Cross multiply
   10,538.28x = 15,812.82 × 4,698.72
4. Step 4: Simplify right side
   10,538.28x = 74,300,013.59
5. Step 5: Solve for x
   x = 74,300,013.59/10,538.28
6. Step 6: Final answer
   x = 7,050.49