Finding the Fourth Proportional to 45,146.91, 62,271.78 and 30,975.15

Step by Step Solution

1. Step 1: Write the proportion equation
   45,146.91 : 62,271.78 = 30,975.15 : x
2. Step 2: Convert to fraction form
   45,146.91/62,271.78 = 30,975.15/x
3. Step 3: Cross multiply
   45,146.91x = 62,271.78 × 30,975.15
4. Step 4: Simplify right side
   45,146.91x = 1,928,877,726.27
5. Step 5: Solve for x
   x = 1,928,877,726.27/45,146.91
6. Step 6: Final answer
   x = 42,724.47