Finding the Fourth Proportional to 31,870.56, 43,977.80 and 17,722.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,870.56 : 43,977.80 = 17,722.56 : x
2. Step 2: Convert to fraction form
   31,870.56/43,977.80 = 17,722.56/x
3. Step 3: Cross multiply
   31,870.56x = 43,977.80 × 17,722.56
4. Step 4: Simplify right side
   31,870.56x = 779,399,199.17
5. Step 5: Solve for x
   x = 779,399,199.17/31,870.56
6. Step 6: Final answer
   x = 24,455.15