Finding the Fourth Proportional to 23,557.84, 32,510.42 and 12,947.74

Step by Step Solution

1. Step 1: Write the proportion equation
   23,557.84 : 32,510.42 = 12,947.74 : x
2. Step 2: Convert to fraction form
   23,557.84/32,510.42 = 12,947.74/x
3. Step 3: Cross multiply
   23,557.84x = 32,510.42 × 12,947.74
4. Step 4: Simplify right side
   23,557.84x = 420,936,465.45
5. Step 5: Solve for x
   x = 420,936,465.45/23,557.84
6. Step 6: Final answer
   x = 17,868.21