Finding the Fourth Proportional to 7,051.40, 9,728.75 and 4,066.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,051.40 : 9,728.75 = 4,066.86 : x
2. Step 2: Convert to fraction form
   7,051.40/9,728.75 = 4,066.86/x
3. Step 3: Cross multiply
   7,051.40x = 9,728.75 × 4,066.86
4. Step 4: Simplify right side
   7,051.40x = 39,565,443.89
5. Step 5: Solve for x
   x = 39,565,443.89/7,051.40
6. Step 6: Final answer
   x = 5,611.01