Finding the Fourth Proportional to 65,507.88, 90,415.46 and 41,629.89

Step by Step Solution

1. Step 1: Write the proportion equation
   65,507.88 : 90,415.46 = 41,629.89 : x
2. Step 2: Convert to fraction form
   65,507.88/90,415.46 = 41,629.89/x
3. Step 3: Cross multiply
   65,507.88x = 90,415.46 × 41,629.89
4. Step 4: Simplify right side
   65,507.88x = 3,763,985,654.10
5. Step 5: Solve for x
   x = 3,763,985,654.10/65,507.88
6. Step 6: Final answer
   x = 57,458.52