Finding the Fourth Proportional to 31,742.72, 47,637.98 and 21,723.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,742.72 : 47,637.98 = 21,723.48 : x
2. Step 2: Convert to fraction form
   31,742.72/47,637.98 = 21,723.48/x
3. Step 3: Cross multiply
   31,742.72x = 47,637.98 × 21,723.48
4. Step 4: Simplify right side
   31,742.72x = 1,034,862,705.77
5. Step 5: Solve for x
   x = 1,034,862,705.77/31,742.72
6. Step 6: Final answer
   x = 32,601.58