Finding the Fourth Proportional to 10,063.72, 15,089.82 and 4,215.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,063.72 : 15,089.82 = 4,215.40 : x
2. Step 2: Convert to fraction form
   10,063.72/15,089.82 = 4,215.40/x
3. Step 3: Cross multiply
   10,063.72x = 15,089.82 × 4,215.40
4. Step 4: Simplify right side
   10,063.72x = 63,609,627.23
5. Step 5: Solve for x
   x = 63,609,627.23/10,063.72
6. Step 6: Final answer
   x = 6,320.69