Finding the Fourth Proportional to 14,085.30, 21,126.87 and 3,696.78

Step by Step Solution

1. Step 1: Write the proportion equation
   14,085.30 : 21,126.87 = 3,696.78 : x
2. Step 2: Convert to fraction form
   14,085.30/21,126.87 = 3,696.78/x
3. Step 3: Cross multiply
   14,085.30x = 21,126.87 × 3,696.78
4. Step 4: Simplify right side
   14,085.30x = 78,101,390.48
5. Step 5: Solve for x
   x = 78,101,390.48/14,085.30
6. Step 6: Final answer
   x = 5,544.89