Finding the Fourth Proportional to 31,426.56, 43,368.96 and 17,280.96

Step by Step Solution

1. Step 1: Write the proportion equation
   31,426.56 : 43,368.96 = 17,280.96 : x
2. Step 2: Convert to fraction form
   31,426.56/43,368.96 = 17,280.96/x
3. Step 3: Cross multiply
   31,426.56x = 43,368.96 × 17,280.96
4. Step 4: Simplify right side
   31,426.56x = 749,457,263.00
5. Step 5: Solve for x
   x = 749,457,263.00/31,426.56
6. Step 6: Final answer
   x = 23,847.89