Finding the Fourth Proportional to 9,307.12, 12,848.16 and 7,051.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,307.12 : 12,848.16 = 7,051.20 : x
2. Step 2: Convert to fraction form
   9,307.12/12,848.16 = 7,051.20/x
3. Step 3: Cross multiply
   9,307.12x = 12,848.16 × 7,051.20
4. Step 4: Simplify right side
   9,307.12x = 90,594,945.79
5. Step 5: Solve for x
   x = 90,594,945.79/9,307.12
6. Step 6: Final answer
   x = 9,733.94