Finding the Fourth Proportional to 11,698.56, 16,149.96 and 7,941.60

Step by Step Solution

1. Step 1: Write the proportion equation
   11,698.56 : 16,149.96 = 7,941.60 : x
2. Step 2: Convert to fraction form
   11,698.56/16,149.96 = 7,941.60/x
3. Step 3: Cross multiply
   11,698.56x = 16,149.96 × 7,941.60
4. Step 4: Simplify right side
   11,698.56x = 128,256,522.34
5. Step 5: Solve for x
   x = 128,256,522.34/11,698.56
6. Step 6: Final answer
   x = 10,963.45