Finding the Fourth Proportional to 10,001.76, 15,003.84 and 3,429.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,001.76 : 15,003.84 = 3,429.12 : x
2. Step 2: Convert to fraction form
   10,001.76/15,003.84 = 3,429.12/x
3. Step 3: Cross multiply
   10,001.76x = 15,003.84 × 3,429.12
4. Step 4: Simplify right side
   10,001.76x = 51,449,967.82
5. Step 5: Solve for x
   x = 51,449,967.82/10,001.76
6. Step 6: Final answer
   x = 5,144.09