Finding the Fourth Proportional to 10,002.32, 15,005.76 and 3,428.11

Step by Step Solution

1. Step 1: Write the proportion equation
   10,002.32 : 15,005.76 = 3,428.11 : x
2. Step 2: Convert to fraction form
   10,002.32/15,005.76 = 3,428.11/x
3. Step 3: Cross multiply
   10,002.32x = 15,005.76 × 3,428.11
4. Step 4: Simplify right side
   10,002.32x = 51,441,395.91
5. Step 5: Solve for x
   x = 51,441,395.91/10,002.32
6. Step 6: Final answer
   x = 5,142.95