Finding the Fourth Proportional to 35,755.61, 49,344.06 and 21,605.72

Step by Step Solution

1. Step 1: Write the proportion equation
   35,755.61 : 49,344.06 = 21,605.72 : x
2. Step 2: Convert to fraction form
   35,755.61/49,344.06 = 21,605.72/x
3. Step 3: Cross multiply
   35,755.61x = 49,344.06 × 21,605.72
4. Step 4: Simplify right side
   35,755.61x = 1,066,113,944.02
5. Step 5: Solve for x
   x = 1,066,113,944.02/35,755.61
6. Step 6: Final answer
   x = 29,816.69