Finding the Fourth Proportional to 13,951.06, 20,926.71 and 5,185.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,951.06 : 20,926.71 = 5,185.98 : x
2. Step 2: Convert to fraction form
   13,951.06/20,926.71 = 5,185.98/x
3. Step 3: Cross multiply
   13,951.06x = 20,926.71 × 5,185.98
4. Step 4: Simplify right side
   13,951.06x = 108,525,499.53
5. Step 5: Solve for x
   x = 108,525,499.53/13,951.06
6. Step 6: Final answer
   x = 7,779.02