Finding the Fourth Proportional to 62,662.50, 93,993.78 and 21,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   62,662.50 : 93,993.78 = 21,109.50 : x
2. Step 2: Convert to fraction form
   62,662.50/93,993.78 = 21,109.50/x
3. Step 3: Cross multiply
   62,662.50x = 93,993.78 × 21,109.50
4. Step 4: Simplify right side
   62,662.50x = 1,984,161,698.91
5. Step 5: Solve for x
   x = 1,984,161,698.91/62,662.50
6. Step 6: Final answer
   x = 31,664.26