Finding the Fourth Proportional to 10,005.52, 15,004.68 and 3,429.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,005.52 : 15,004.68 = 3,429.94 : x
2. Step 2: Convert to fraction form
   10,005.52/15,004.68 = 3,429.94/x
3. Step 3: Cross multiply
   10,005.52x = 15,004.68 × 3,429.94
4. Step 4: Simplify right side
   10,005.52x = 51,465,152.12
5. Step 5: Solve for x
   x = 51,465,152.12/10,005.52
6. Step 6: Final answer
   x = 5,143.68