Finding the Fourth Proportional to 65,505.31, 90,394.72 and 37,207.87

Step by Step Solution

1. Step 1: Write the proportion equation
   65,505.31 : 90,394.72 = 37,207.87 : x
2. Step 2: Convert to fraction form
   65,505.31/90,394.72 = 37,207.87/x
3. Step 3: Cross multiply
   65,505.31x = 90,394.72 × 37,207.87
4. Step 4: Simplify right side
   65,505.31x = 3,363,394,990.45
5. Step 5: Solve for x
   x = 3,363,394,990.45/65,505.31
6. Step 6: Final answer
   x = 51,345.38