Finding the Fourth Proportional to 43,196.32, 64,803.24 and 16,540.40

Step by Step Solution

1. Step 1: Write the proportion equation
   43,196.32 : 64,803.24 = 16,540.40 : x
2. Step 2: Convert to fraction form
   43,196.32/64,803.24 = 16,540.40/x
3. Step 3: Cross multiply
   43,196.32x = 64,803.24 × 16,540.40
4. Step 4: Simplify right side
   43,196.32x = 1,071,871,510.90
5. Step 5: Solve for x
   x = 1,071,871,510.90/43,196.32
6. Step 6: Final answer
   x = 24,813.95