Finding the Fourth Proportional to 65,801.70, 90,807.39 and 37,506.78

Step by Step Solution

1. Step 1: Write the proportion equation
   65,801.70 : 90,807.39 = 37,506.78 : x
2. Step 2: Convert to fraction form
   65,801.70/90,807.39 = 37,506.78/x
3. Step 3: Cross multiply
   65,801.70x = 90,807.39 × 37,506.78
4. Step 4: Simplify right side
   65,801.70x = 3,405,892,799.10
5. Step 5: Solve for x
   x = 3,405,892,799.10/65,801.70
6. Step 6: Final answer
   x = 51,759.95