Finding the Fourth Proportional to 47,665.91, 71,499.33 and 14,386.25

Step by Step Solution

1. Step 1: Write the proportion equation
   47,665.91 : 71,499.33 = 14,386.25 : x
2. Step 2: Convert to fraction form
   47,665.91/71,499.33 = 14,386.25/x
3. Step 3: Cross multiply
   47,665.91x = 71,499.33 × 14,386.25
4. Step 4: Simplify right side
   47,665.91x = 1,028,606,878.72
5. Step 5: Solve for x
   x = 1,028,606,878.72/47,665.91
6. Step 6: Final answer
   x = 21,579.51