Finding the Fourth Proportional to 9,933.71, 13,706.58 and 5,686.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,933.71 : 13,706.58 = 5,686.07 : x
2. Step 2: Convert to fraction form
   9,933.71/13,706.58 = 5,686.07/x
3. Step 3: Cross multiply
   9,933.71x = 13,706.58 × 5,686.07
4. Step 4: Simplify right side
   9,933.71x = 77,936,573.34
5. Step 5: Solve for x
   x = 77,936,573.34/9,933.71
6. Step 6: Final answer
   x = 7,845.67