Finding the Fourth Proportional to 65,699.42, 90,665.27 and 37,405.10

Step by Step Solution

1. Step 1: Write the proportion equation
   65,699.42 : 90,665.27 = 37,405.10 : x
2. Step 2: Convert to fraction form
   65,699.42/90,665.27 = 37,405.10/x
3. Step 3: Cross multiply
   65,699.42x = 90,665.27 × 37,405.10
4. Step 4: Simplify right side
   65,699.42x = 3,391,342,850.53
5. Step 5: Solve for x
   x = 3,391,342,850.53/65,699.42
6. Step 6: Final answer
   x = 51,619.07