Finding the Fourth Proportional to 23,710.32, 35,580.06 and 13,188.42

Step by Step Solution

1. Step 1: Write the proportion equation
   23,710.32 : 35,580.06 = 13,188.42 : x
2. Step 2: Convert to fraction form
   23,710.32/35,580.06 = 13,188.42/x
3. Step 3: Cross multiply
   23,710.32x = 35,580.06 × 13,188.42
4. Step 4: Simplify right side
   23,710.32x = 469,244,774.91
5. Step 5: Solve for x
   x = 469,244,774.91/23,710.32
6. Step 6: Final answer
   x = 19,790.74