Finding the Fourth Proportional to 16,091.76, 24,140.80 and 7,777.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,091.76 : 24,140.80 = 7,777.52 : x
2. Step 2: Convert to fraction form
   16,091.76/24,140.80 = 7,777.52/x
3. Step 3: Cross multiply
   16,091.76x = 24,140.80 × 7,777.52
4. Step 4: Simplify right side
   16,091.76x = 187,755,554.82
5. Step 5: Solve for x
   x = 187,755,554.82/16,091.76
6. Step 6: Final answer
   x = 11,667.81