Finding the Fourth Proportional to 10,300.32, 15,441.84 and 4,142.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.32 : 15,441.84 = 4,142.88 : x
2. Step 2: Convert to fraction form
   10,300.32/15,441.84 = 4,142.88/x
3. Step 3: Cross multiply
   10,300.32x = 15,441.84 × 4,142.88
4. Step 4: Simplify right side
   10,300.32x = 63,973,690.10
5. Step 5: Solve for x
   x = 63,973,690.10/10,300.32
6. Step 6: Final answer
   x = 6,210.84