Finding the Fourth Proportional to 10,300.90, 14,213.97 and 7,315.66

Step by Step Solution

1. Step 1: Write the proportion equation
   10,300.90 : 14,213.97 = 7,315.66 : x
2. Step 2: Convert to fraction form
   10,300.90/14,213.97 = 7,315.66/x
3. Step 3: Cross multiply
   10,300.90x = 14,213.97 × 7,315.66
4. Step 4: Simplify right side
   10,300.90x = 103,984,571.77
5. Step 5: Solve for x
   x = 103,984,571.77/10,300.90
6. Step 6: Final answer
   x = 10,094.71