Finding the Fourth Proportional to 9,999.06, 13,799.52 and 5,751.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,999.06 : 13,799.52 = 5,751.50 : x
2. Step 2: Convert to fraction form
   9,999.06/13,799.52 = 5,751.50/x
3. Step 3: Cross multiply
   9,999.06x = 13,799.52 × 5,751.50
4. Step 4: Simplify right side
   9,999.06x = 79,367,870.28
5. Step 5: Solve for x
   x = 79,367,870.28/9,999.06
6. Step 6: Final answer
   x = 7,937.53