Finding the Fourth Proportional to 30,339.95, 45,516.42 and 10,619.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,339.95 : 45,516.42 = 10,619.15 : x
2. Step 2: Convert to fraction form
   30,339.95/45,516.42 = 10,619.15/x
3. Step 3: Cross multiply
   30,339.95x = 45,516.42 × 10,619.15
4. Step 4: Simplify right side
   30,339.95x = 483,345,463.86
5. Step 5: Solve for x
   x = 483,345,463.86/30,339.95
6. Step 6: Final answer
   x = 15,930.99