Finding the Fourth Proportional to 21,417.02, 32,162.30 and 13,145.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,417.02 : 32,162.30 = 13,145.62 : x
2. Step 2: Convert to fraction form
   21,417.02/32,162.30 = 13,145.62/x
3. Step 3: Cross multiply
   21,417.02x = 32,162.30 × 13,145.62
4. Step 4: Simplify right side
   21,417.02x = 422,793,374.13
5. Step 5: Solve for x
   x = 422,793,374.13/21,417.02
6. Step 6: Final answer
   x = 19,741.00