Finding the Fourth Proportional to 10,910.86, 15,061.60 and 7,378.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,910.86 : 15,061.60 = 7,378.84 : x
2. Step 2: Convert to fraction form
   10,910.86/15,061.60 = 7,378.84/x
3. Step 3: Cross multiply
   10,910.86x = 15,061.60 × 7,378.84
4. Step 4: Simplify right side
   10,910.86x = 111,137,136.54
5. Step 5: Solve for x
   x = 111,137,136.54/10,910.86
6. Step 6: Final answer
   x = 10,185.92