Finding the Fourth Proportional to 51,693.57, 71,355.06 and 30,471.57

Step by Step Solution

1. Step 1: Write the proportion equation
   51,693.57 : 71,355.06 = 30,471.57 : x
2. Step 2: Convert to fraction form
   51,693.57/71,355.06 = 30,471.57/x
3. Step 3: Cross multiply
   51,693.57x = 71,355.06 × 30,471.57
4. Step 4: Simplify right side
   51,693.57x = 2,174,300,705.64
5. Step 5: Solve for x
   x = 2,174,300,705.64/51,693.57
6. Step 6: Final answer
   x = 42,061.34