Finding the Fourth Proportional to 10,386.84, 14,313.24 and 7,397.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,386.84 : 14,313.24 = 7,397.40 : x
2. Step 2: Convert to fraction form
   10,386.84/14,313.24 = 7,397.40/x
3. Step 3: Cross multiply
   10,386.84x = 14,313.24 × 7,397.40
4. Step 4: Simplify right side
   10,386.84x = 105,880,761.58
5. Step 5: Solve for x
   x = 105,880,761.58/10,386.84
6. Step 6: Final answer
   x = 10,193.74