Finding the Fourth Proportional to 10,620.72, 14,649.66 and 7,083.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,620.72 : 14,649.66 = 7,083.72 : x
2. Step 2: Convert to fraction form
   10,620.72/14,649.66 = 7,083.72/x
3. Step 3: Cross multiply
   10,620.72x = 14,649.66 × 7,083.72
4. Step 4: Simplify right side
   10,620.72x = 103,774,089.54
5. Step 5: Solve for x
   x = 103,774,089.54/10,620.72
6. Step 6: Final answer
   x = 9,770.91