Finding the Fourth Proportional to 39,832.72, 59,754.30 and 13,530.40

Step by Step Solution

1. Step 1: Write the proportion equation
   39,832.72 : 59,754.30 = 13,530.40 : x
2. Step 2: Convert to fraction form
   39,832.72/59,754.30 = 13,530.40/x
3. Step 3: Cross multiply
   39,832.72x = 59,754.30 × 13,530.40
4. Step 4: Simplify right side
   39,832.72x = 808,499,580.72
5. Step 5: Solve for x
   x = 808,499,580.72/39,832.72
6. Step 6: Final answer
   x = 20,297.37