Finding the Fourth Proportional to 38,697.78, 58,072.56 and 14,073.78

Step by Step Solution

1. Step 1: Write the proportion equation
   38,697.78 : 58,072.56 = 14,073.78 : x
2. Step 2: Convert to fraction form
   38,697.78/58,072.56 = 14,073.78/x
3. Step 3: Cross multiply
   38,697.78x = 58,072.56 × 14,073.78
4. Step 4: Simplify right side
   38,697.78x = 817,300,433.48
5. Step 5: Solve for x
   x = 817,300,433.48/38,697.78
6. Step 6: Final answer
   x = 21,120.09