Finding the Fourth Proportional to 31,212.27, 43,050.69 and 19,113.30

Step by Step Solution

1. Step 1: Write the proportion equation
   31,212.27 : 43,050.69 = 19,113.30 : x
2. Step 2: Convert to fraction form
   31,212.27/43,050.69 = 19,113.30/x
3. Step 3: Cross multiply
   31,212.27x = 43,050.69 × 19,113.30
4. Step 4: Simplify right side
   31,212.27x = 822,840,753.18
5. Step 5: Solve for x
   x = 822,840,753.18/31,212.27
6. Step 6: Final answer
   x = 26,362.73