Finding the Fourth Proportional to 11,500.77, 15,873.86 and 7,028.29

Step by Step Solution

1. Step 1: Write the proportion equation
   11,500.77 : 15,873.86 = 7,028.29 : x
2. Step 2: Convert to fraction form
   11,500.77/15,873.86 = 7,028.29/x
3. Step 3: Cross multiply
   11,500.77x = 15,873.86 × 7,028.29
4. Step 4: Simplify right side
   11,500.77x = 111,566,091.50
5. Step 5: Solve for x
   x = 111,566,091.50/11,500.77
6. Step 6: Final answer
   x = 9,700.75