Finding the Fourth Proportional to 49,981.16, 74,934.69 and 30,255.05

Step by Step Solution

1. Step 1: Write the proportion equation
   49,981.16 : 74,934.69 = 30,255.05 : x
2. Step 2: Convert to fraction form
   49,981.16/74,934.69 = 30,255.05/x
3. Step 3: Cross multiply
   49,981.16x = 74,934.69 × 30,255.05
4. Step 4: Simplify right side
   49,981.16x = 2,267,152,418.01
5. Step 5: Solve for x
   x = 2,267,152,418.01/49,981.16
6. Step 6: Final answer
   x = 45,360.14