Finding the Fourth Proportional to 66,066.89, 91,171.33 and 38,846.05

Step by Step Solution

1. Step 1: Write the proportion equation
   66,066.89 : 91,171.33 = 38,846.05 : x
2. Step 2: Convert to fraction form
   66,066.89/91,171.33 = 38,846.05/x
3. Step 3: Cross multiply
   66,066.89x = 91,171.33 × 38,846.05
4. Step 4: Simplify right side
   66,066.89x = 3,541,646,060.60
5. Step 5: Solve for x
   x = 3,541,646,060.60/66,066.89
6. Step 6: Final answer
   x = 53,606.97