Finding the Fourth Proportional to 13,899.56, 19,181.46 and 7,611.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,899.56 : 19,181.46 = 7,611.94 : x
2. Step 2: Convert to fraction form
   13,899.56/19,181.46 = 7,611.94/x
3. Step 3: Cross multiply
   13,899.56x = 19,181.46 × 7,611.94
4. Step 4: Simplify right side
   13,899.56x = 146,008,103.22
5. Step 5: Solve for x
   x = 146,008,103.22/13,899.56
6. Step 6: Final answer
   x = 10,504.51