Finding the Fourth Proportional to 23,612.32, 32,583.72 and 12,999.94

Step by Step Solution

1. Step 1: Write the proportion equation
   23,612.32 : 32,583.72 = 12,999.94 : x
2. Step 2: Convert to fraction form
   23,612.32/32,583.72 = 12,999.94/x
3. Step 3: Cross multiply
   23,612.32x = 32,583.72 × 12,999.94
4. Step 4: Simplify right side
   23,612.32x = 423,586,404.98
5. Step 5: Solve for x
   x = 423,586,404.98/23,612.32
6. Step 6: Final answer
   x = 17,939.21