Finding the Fourth Proportional to 9,759.79, 13,463.72 and 5,779.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,759.79 : 13,463.72 = 5,779.01 : x
2. Step 2: Convert to fraction form
   9,759.79/13,463.72 = 5,779.01/x
3. Step 3: Cross multiply
   9,759.79x = 13,463.72 × 5,779.01
4. Step 4: Simplify right side
   9,759.79x = 77,806,998.95
5. Step 5: Solve for x
   x = 77,806,998.95/9,759.79
6. Step 6: Final answer
   x = 7,972.20