Finding the Fourth Proportional to 38,298, 52,851.24 and 21,531.12

Step by Step Solution

1. Step 1: Write the proportion equation
   38,298 : 52,851.24 = 21,531.12 : x
2. Step 2: Convert to fraction form
   38,298/52,851.24 = 21,531.12/x
3. Step 3: Cross multiply
   38,298x = 52,851.24 × 21,531.12
4. Step 4: Simplify right side
   38,298x = 1,137,946,390.59
5. Step 5: Solve for x
   x = 1,137,946,390.59/38,298
6. Step 6: Final answer
   x = 29,712.95