Finding the Fourth Proportional to 66,021.50, 91,109.82 and 37,727.12

Step by Step Solution

1. Step 1: Write the proportion equation
   66,021.50 : 91,109.82 = 37,727.12 : x
2. Step 2: Convert to fraction form
   66,021.50/91,109.82 = 37,727.12/x
3. Step 3: Cross multiply
   66,021.50x = 91,109.82 × 37,727.12
4. Step 4: Simplify right side
   66,021.50x = 3,437,311,112.32
5. Step 5: Solve for x
   x = 3,437,311,112.32/66,021.50
6. Step 6: Final answer
   x = 52,063.51