Finding the Fourth Proportional to 11,769.44, 17,658.72 and 5,190.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,769.44 : 17,658.72 = 5,190.98 : x
2. Step 2: Convert to fraction form
   11,769.44/17,658.72 = 5,190.98/x
3. Step 3: Cross multiply
   11,769.44x = 17,658.72 × 5,190.98
4. Step 4: Simplify right side
   11,769.44x = 91,666,062.35
5. Step 5: Solve for x
   x = 91,666,062.35/11,769.44
6. Step 6: Final answer
   x = 7,788.48