Finding the Fourth Proportional to 38,493, 53,121.18 and 21,726.12

Step by Step Solution

1. Step 1: Write the proportion equation
   38,493 : 53,121.18 = 21,726.12 : x
2. Step 2: Convert to fraction form
   38,493/53,121.18 = 21,726.12/x
3. Step 3: Cross multiply
   38,493x = 53,121.18 × 21,726.12
4. Step 4: Simplify right side
   38,493x = 1,154,117,131.22
5. Step 5: Solve for x
   x = 1,154,117,131.22/38,493
6. Step 6: Final answer
   x = 29,982.52