Finding the Fourth Proportional to 10,483.62, 14,473.86 and 7,215

Step by Step Solution

1. Step 1: Write the proportion equation
   10,483.62 : 14,473.86 = 7,215 : x
2. Step 2: Convert to fraction form
   10,483.62/14,473.86 = 7,215/x
3. Step 3: Cross multiply
   10,483.62x = 14,473.86 × 7,215
4. Step 4: Simplify right side
   10,483.62x = 104,428,899.90
5. Step 5: Solve for x
   x = 104,428,899.90/10,483.62
6. Step 6: Final answer
   x = 9,961.15