Finding the Fourth Proportional to 13,906.56, 19,191.52 and 7,618.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,906.56 : 19,191.52 = 7,618.88 : x
2. Step 2: Convert to fraction form
   13,906.56/19,191.52 = 7,618.88/x
3. Step 3: Cross multiply
   13,906.56x = 19,191.52 × 7,618.88
4. Step 4: Simplify right side
   13,906.56x = 146,217,887.90
5. Step 5: Solve for x
   x = 146,217,887.90/13,906.56
6. Step 6: Final answer
   x = 10,514.31