Finding the Fourth Proportional to 10,428.68, 14,392.61 and 5,953.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,428.68 : 14,392.61 = 5,953.10 : x
2. Step 2: Convert to fraction form
   10,428.68/14,392.61 = 5,953.10/x
3. Step 3: Cross multiply
   10,428.68x = 14,392.61 × 5,953.10
4. Step 4: Simplify right side
   10,428.68x = 85,680,675.13
5. Step 5: Solve for x
   x = 85,680,675.13/10,428.68
6. Step 6: Final answer
   x = 8,215.87