Finding the Fourth Proportional to 10,004.79, 13,807.23 and 5,528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,004.79 : 13,807.23 = 5,528.52 : x
2. Step 2: Convert to fraction form
   10,004.79/13,807.23 = 5,528.52/x
3. Step 3: Cross multiply
   10,004.79x = 13,807.23 × 5,528.52
4. Step 4: Simplify right side
   10,004.79x = 76,333,547.20
5. Step 5: Solve for x
   x = 76,333,547.20/10,004.79
6. Step 6: Final answer
   x = 7,629.70