Finding the Fourth Proportional to 35,970, 49,642.92 and 21,066

Step by Step Solution

1. Step 1: Write the proportion equation
   35,970 : 49,642.92 = 21,066 : x
2. Step 2: Convert to fraction form
   35,970/49,642.92 = 21,066/x
3. Step 3: Cross multiply
   35,970x = 49,642.92 × 21,066
4. Step 4: Simplify right side
   35,970x = 1,045,777,752.72
5. Step 5: Solve for x
   x = 1,045,777,752.72/35,970
6. Step 6: Final answer
   x = 29,073.61