Finding the Fourth Proportional to 36,882, 50,897.16 and 21,978

Step by Step Solution

1. Step 1: Write the proportion equation
   36,882 : 50,897.16 = 21,978 : x
2. Step 2: Convert to fraction form
   36,882/50,897.16 = 21,978/x
3. Step 3: Cross multiply
   36,882x = 50,897.16 × 21,978
4. Step 4: Simplify right side
   36,882x = 1,118,617,782.48
5. Step 5: Solve for x
   x = 1,118,617,782.48/36,882
6. Step 6: Final answer
   x = 30,329.64