Finding the Fourth Proportional to 11,559.90, 15,944.31 and 7,369.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,559.90 : 15,944.31 = 7,369.50 : x
2. Step 2: Convert to fraction form
   11,559.90/15,944.31 = 7,369.50/x
3. Step 3: Cross multiply
   11,559.90x = 15,944.31 × 7,369.50
4. Step 4: Simplify right side
   11,559.90x = 117,501,592.55
5. Step 5: Solve for x
   x = 117,501,592.55/11,559.90
6. Step 6: Final answer
   x = 10,164.59