Finding the Fourth Proportional to 64,631.67, 89,193 and 37,775.31

Step by Step Solution

1. Step 1: Write the proportion equation
   64,631.67 : 89,193 = 37,775.31 : x
2. Step 2: Convert to fraction form
   64,631.67/89,193 = 37,775.31/x
3. Step 3: Cross multiply
   64,631.67x = 89,193 × 37,775.31
4. Step 4: Simplify right side
   64,631.67x = 3,369,293,224.83
5. Step 5: Solve for x
   x = 3,369,293,224.83/64,631.67
6. Step 6: Final answer
   x = 52,130.68