Finding the Fourth Proportional to 23,438.95, 32,345.55 and 12,828.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,438.95 : 32,345.55 = 12,828.56 : x
2. Step 2: Convert to fraction form
   23,438.95/32,345.55 = 12,828.56/x
3. Step 3: Cross multiply
   23,438.95x = 32,345.55 × 12,828.56
4. Step 4: Simplify right side
   23,438.95x = 414,946,667.18
5. Step 5: Solve for x
   x = 414,946,667.18/23,438.95
6. Step 6: Final answer
   x = 17,703.30