Finding the Fourth Proportional to 54,335.20, 74,981.52 and 30,136

Step by Step Solution

1. Step 1: Write the proportion equation
   54,335.20 : 74,981.52 = 30,136 : x
2. Step 2: Convert to fraction form
   54,335.20/74,981.52 = 30,136/x
3. Step 3: Cross multiply
   54,335.20x = 74,981.52 × 30,136
4. Step 4: Simplify right side
   54,335.20x = 2,259,643,086.72
5. Step 5: Solve for x
   x = 2,259,643,086.72/54,335.20
6. Step 6: Final answer
   x = 41,587.09