Finding the Fourth Proportional to 10,963.89, 15,111.99 and 7,773.08

Step by Step Solution

1. Step 1: Write the proportion equation
   10,963.89 : 15,111.99 = 7,773.08 : x
2. Step 2: Convert to fraction form
   10,963.89/15,111.99 = 7,773.08/x
3. Step 3: Cross multiply
   10,963.89x = 15,111.99 × 7,773.08
4. Step 4: Simplify right side
   10,963.89x = 117,466,631.67
5. Step 5: Solve for x
   x = 117,466,631.67/10,963.89
6. Step 6: Final answer
   x = 10,713.96