Finding the Fourth Proportional to 11,131.32, 16,696.88 and 4,889.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.32 : 16,696.88 = 4,889.77 : x
2. Step 2: Convert to fraction form
   11,131.32/16,696.88 = 4,889.77/x
3. Step 3: Cross multiply
   11,131.32x = 16,696.88 × 4,889.77
4. Step 4: Simplify right side
   11,131.32x = 81,643,882.57
5. Step 5: Solve for x
   x = 81,643,882.57/11,131.32
6. Step 6: Final answer
   x = 7,334.61