Finding the Fourth Proportional to 35,376.28, 48,791.59 and 21,939.94

Step by Step Solution

1. Step 1: Write the proportion equation
   35,376.28 : 48,791.59 = 21,939.94 : x
2. Step 2: Convert to fraction form
   35,376.28/48,791.59 = 21,939.94/x
3. Step 3: Cross multiply
   35,376.28x = 48,791.59 × 21,939.94
4. Step 4: Simplify right side
   35,376.28x = 1,070,484,557.10
5. Step 5: Solve for x
   x = 1,070,484,557.10/35,376.28
6. Step 6: Final answer
   x = 30,259.95