Finding the Fourth Proportional to 66,422.86, 91,660.17 and 37,738.75

Step by Step Solution

1. Step 1: Write the proportion equation
   66,422.86 : 91,660.17 = 37,738.75 : x
2. Step 2: Convert to fraction form
   66,422.86/91,660.17 = 37,738.75/x
3. Step 3: Cross multiply
   66,422.86x = 91,660.17 × 37,738.75
4. Step 4: Simplify right side
   66,422.86x = 3,459,140,240.59
5. Step 5: Solve for x
   x = 3,459,140,240.59/66,422.86
6. Step 6: Final answer
   x = 52,077.56