Finding the Fourth Proportional to 47,058.32, 70,582.31 and 13,778.71

Step by Step Solution

1. Step 1: Write the proportion equation
   47,058.32 : 70,582.31 = 13,778.71 : x
2. Step 2: Convert to fraction form
   47,058.32/70,582.31 = 13,778.71/x
3. Step 3: Cross multiply
   47,058.32x = 70,582.31 × 13,778.71
4. Step 4: Simplify right side
   47,058.32x = 972,533,025.69
5. Step 5: Solve for x
   x = 972,533,025.69/47,058.32
6. Step 6: Final answer
   x = 20,666.55