Finding the Fourth Proportional to 10,345.82, 14,293.96 and 7,215.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,345.82 : 14,293.96 = 7,215.98 : x
2. Step 2: Convert to fraction form
   10,345.82/14,293.96 = 7,215.98/x
3. Step 3: Cross multiply
   10,345.82x = 14,293.96 × 7,215.98
4. Step 4: Simplify right side
   10,345.82x = 103,144,929.48
5. Step 5: Solve for x
   x = 103,144,929.48/10,345.82
6. Step 6: Final answer
   x = 9,969.72