Finding the Fourth Proportional to 31,719.60, 43,771.16 and 17,376.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,719.60 : 43,771.16 = 17,376.56 : x
2. Step 2: Convert to fraction form
   31,719.60/43,771.16 = 17,376.56/x
3. Step 3: Cross multiply
   31,719.60x = 43,771.16 × 17,376.56
4. Step 4: Simplify right side
   31,719.60x = 760,592,188.01
5. Step 5: Solve for x
   x = 760,592,188.01/31,719.60
6. Step 6: Final answer
   x = 23,978.62