Finding the Fourth Proportional to 10,129.79, 15,196.21 and 3,554.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,129.79 : 15,196.21 = 3,554.82 : x
2. Step 2: Convert to fraction form
   10,129.79/15,196.21 = 3,554.82/x
3. Step 3: Cross multiply
   10,129.79x = 15,196.21 × 3,554.82
4. Step 4: Simplify right side
   10,129.79x = 54,019,782.35
5. Step 5: Solve for x
   x = 54,019,782.35/10,129.79
6. Step 6: Final answer
   x = 5,332.76