Finding the Fourth Proportional to 66,066.48, 91,174.50 and 37,772.15

Step by Step Solution

1. Step 1: Write the proportion equation
   66,066.48 : 91,174.50 = 37,772.15 : x
2. Step 2: Convert to fraction form
   66,066.48/91,174.50 = 37,772.15/x
3. Step 3: Cross multiply
   66,066.48x = 91,174.50 × 37,772.15
4. Step 4: Simplify right side
   66,066.48x = 3,443,856,434.30
5. Step 5: Solve for x
   x = 3,443,856,434.30/66,066.48
6. Step 6: Final answer
   x = 52,127.14