Finding the Fourth Proportional to 13,907.15, 19,191.90 and 7,619.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,907.15 : 19,191.90 = 7,619.52 : x
2. Step 2: Convert to fraction form
   13,907.15/19,191.90 = 7,619.52/x
3. Step 3: Cross multiply
   13,907.15x = 19,191.90 × 7,619.52
4. Step 4: Simplify right side
   13,907.15x = 146,233,065.89
5. Step 5: Solve for x
   x = 146,233,065.89/13,907.15
6. Step 6: Final answer
   x = 10,514.96