Finding the Fourth Proportional to 11,641.18, 16,055.41 and 7,156.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,641.18 : 16,055.41 = 7,156.92 : x
2. Step 2: Convert to fraction form
   11,641.18/16,055.41 = 7,156.92/x
3. Step 3: Cross multiply
   11,641.18x = 16,055.41 × 7,156.92
4. Step 4: Simplify right side
   11,641.18x = 114,907,284.94
5. Step 5: Solve for x
   x = 114,907,284.94/11,641.18
6. Step 6: Final answer
   x = 9,870.76