Finding the Fourth Proportional to 9,486.72, 13,087.86 and 5,948.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,486.72 : 13,087.86 = 5,948.64 : x
2. Step 2: Convert to fraction form
   9,486.72/13,087.86 = 5,948.64/x
3. Step 3: Cross multiply
   9,486.72x = 13,087.86 × 5,948.64
4. Step 4: Simplify right side
   9,486.72x = 77,854,967.51
5. Step 5: Solve for x
   x = 77,854,967.51/9,486.72
6. Step 6: Final answer
   x = 8,206.73