Finding the Fourth Proportional to 13,075.98, 18,047.25 and 7,773.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,075.98 : 18,047.25 = 7,773.72 : x
2. Step 2: Convert to fraction form
   13,075.98/18,047.25 = 7,773.72/x
3. Step 3: Cross multiply
   13,075.98x = 18,047.25 × 7,773.72
4. Step 4: Simplify right side
   13,075.98x = 140,294,268.27
5. Step 5: Solve for x
   x = 140,294,268.27/13,075.98
6. Step 6: Final answer
   x = 10,729.16