Finding the Fourth Proportional to 10,315.91, 14,241.59 and 7,777.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,315.91 : 14,241.59 = 7,777.98 : x
2. Step 2: Convert to fraction form
   10,315.91/14,241.59 = 7,777.98/x
3. Step 3: Cross multiply
   10,315.91x = 14,241.59 × 7,777.98
4. Step 4: Simplify right side
   10,315.91x = 110,770,802.19
5. Step 5: Solve for x
   x = 110,770,802.19/10,315.91
6. Step 6: Final answer
   x = 10,737.86