Finding the Fourth Proportional to 10,333.72, 14,257.03 and 7,145.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,333.72 : 14,257.03 = 7,145.83 : x
2. Step 2: Convert to fraction form
   10,333.72/14,257.03 = 7,145.83/x
3. Step 3: Cross multiply
   10,333.72x = 14,257.03 × 7,145.83
4. Step 4: Simplify right side
   10,333.72x = 101,878,312.68
5. Step 5: Solve for x
   x = 101,878,312.68/10,333.72
6. Step 6: Final answer
   x = 9,858.82