Finding the Fourth Proportional to 10,386.67, 14,333.20 and 5,670.99

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.67 : 14,333.20 = 5,670.99 : x
2. Step 2: Convert to fraction form
   10,386.67/14,333.20 = 5,670.99/x
3. Step 3: Cross multiply
   10,386.67x = 14,333.20 × 5,670.99
4. Step 4: Simplify right side
   10,386.67x = 81,283,433.87
5. Step 5: Solve for x
   x = 81,283,433.87/10,386.67
6. Step 6: Final answer
   x = 7,825.75