Finding the Fourth Proportional to 75,488.15, 113,231.82 and 19,328.15

Step by Step Solution

1. Step 1: Write the proportion equation
   75,488.15 : 113,231.82 = 19,328.15 : x
2. Step 2: Convert to fraction form
   75,488.15/113,231.82 = 19,328.15/x
3. Step 3: Cross multiply
   75,488.15x = 113,231.82 × 19,328.15
4. Step 4: Simplify right side
   75,488.15x = 2,188,561,601.73
5. Step 5: Solve for x
   x = 2,188,561,601.73/75,488.15
6. Step 6: Final answer
   x = 28,992.12