Finding the Fourth Proportional to 42,752.71, 64,113.69 and 14,665.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,752.71 : 64,113.69 = 14,665.48 : x
2. Step 2: Convert to fraction form
   42,752.71/64,113.69 = 14,665.48/x
3. Step 3: Cross multiply
   42,752.71x = 64,113.69 × 14,665.48
4. Step 4: Simplify right side
   42,752.71x = 940,258,038.42
5. Step 5: Solve for x
   x = 940,258,038.42/42,752.71
6. Step 6: Final answer
   x = 21,992.95