Finding the Fourth Proportional to 23,298.47, 32,152.26 and 12,688.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,298.47 : 32,152.26 = 12,688.09 : x
2. Step 2: Convert to fraction form
   23,298.47/32,152.26 = 12,688.09/x
3. Step 3: Cross multiply
   23,298.47x = 32,152.26 × 12,688.09
4. Step 4: Simplify right side
   23,298.47x = 407,950,705.14
5. Step 5: Solve for x
   x = 407,950,705.14/23,298.47
6. Step 6: Final answer
   x = 17,509.76