Finding the Fourth Proportional to 35,777.88, 49,364.70 and 21,440.04

Step by Step Solution

1. Step 1: Write the proportion equation
   35,777.88 : 49,364.70 = 21,440.04 : x
2. Step 2: Convert to fraction form
   35,777.88/49,364.70 = 21,440.04/x
3. Step 3: Cross multiply
   35,777.88x = 49,364.70 × 21,440.04
4. Step 4: Simplify right side
   35,777.88x = 1,058,381,142.59
5. Step 5: Solve for x
   x = 1,058,381,142.59/35,777.88
6. Step 6: Final answer
   x = 29,582.00