Finding the Fourth Proportional to 23,298.48, 32,152.48 and 12,688.70

Step by Step Solution

1. Step 1: Write the proportion equation
   23,298.48 : 32,152.48 = 12,688.70 : x
2. Step 2: Convert to fraction form
   23,298.48/32,152.48 = 12,688.70/x
3. Step 3: Cross multiply
   23,298.48x = 32,152.48 × 12,688.70
4. Step 4: Simplify right side
   23,298.48x = 407,973,172.98
5. Step 5: Solve for x
   x = 407,973,172.98/23,298.48
6. Step 6: Final answer
   x = 17,510.72