Finding the Fourth Proportional to 9,985.25, 13,779.18 and 5,733.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,985.25 : 13,779.18 = 5,733.32 : x
2. Step 2: Convert to fraction form
   9,985.25/13,779.18 = 5,733.32/x
3. Step 3: Cross multiply
   9,985.25x = 13,779.18 × 5,733.32
4. Step 4: Simplify right side
   9,985.25x = 79,000,448.28
5. Step 5: Solve for x
   x = 79,000,448.28/9,985.25
6. Step 6: Final answer
   x = 7,911.71