Finding the Fourth Proportional to 38,791.32, 53,532.24 and 21,796.28

Step by Step Solution

1. Step 1: Write the proportion equation
   38,791.32 : 53,532.24 = 21,796.28 : x
2. Step 2: Convert to fraction form
   38,791.32/53,532.24 = 21,796.28/x
3. Step 3: Cross multiply
   38,791.32x = 53,532.24 × 21,796.28
4. Step 4: Simplify right side
   38,791.32x = 1,166,803,692.07
5. Step 5: Solve for x
   x = 1,166,803,692.07/38,791.32
6. Step 6: Final answer
   x = 30,078.99