Finding the Fourth Proportional to 66,081.32, 91,170 and 37,766.96

Step by Step Solution

1. Step 1: Write the proportion equation
   66,081.32 : 91,170 = 37,766.96 : x
2. Step 2: Convert to fraction form
   66,081.32/91,170 = 37,766.96/x
3. Step 3: Cross multiply
   66,081.32x = 91,170 × 37,766.96
4. Step 4: Simplify right side
   66,081.32x = 3,443,213,743.20
5. Step 5: Solve for x
   x = 3,443,213,743.20/66,081.32
6. Step 6: Final answer
   x = 52,105.70