Finding the Fourth Proportional to 38,835, 53,596.71 and 21,609.09

Step by Step Solution

1. Step 1: Write the proportion equation
   38,835 : 53,596.71 = 21,609.09 : x
2. Step 2: Convert to fraction form
   38,835/53,596.71 = 21,609.09/x
3. Step 3: Cross multiply
   38,835x = 53,596.71 × 21,609.09
4. Step 4: Simplify right side
   38,835x = 1,158,176,130.09
5. Step 5: Solve for x
   x = 1,158,176,130.09/38,835
6. Step 6: Final answer
   x = 29,823.00