Finding the Fourth Proportional to 10,300.71, 15,455.69 and 4,751.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.71 : 15,455.69 = 4,751.08 : x
2. Step 2: Convert to fraction form
   10,300.71/15,455.69 = 4,751.08/x
3. Step 3: Cross multiply
   10,300.71x = 15,455.69 × 4,751.08
4. Step 4: Simplify right side
   10,300.71x = 73,431,219.65
5. Step 5: Solve for x
   x = 73,431,219.65/10,300.71
6. Step 6: Final answer
   x = 7,128.75