Finding the Fourth Proportional to 23,280.72, 32,127.30 and 12,670.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,280.72 : 32,127.30 = 12,670.35 : x
2. Step 2: Convert to fraction form
   23,280.72/32,127.30 = 12,670.35/x
3. Step 3: Cross multiply
   23,280.72x = 32,127.30 × 12,670.35
4. Step 4: Simplify right side
   23,280.72x = 407,064,135.56
5. Step 5: Solve for x
   x = 407,064,135.56/23,280.72
6. Step 6: Final answer
   x = 17,485.03