Finding the Fourth Proportional to 65,415.80, 90,250.17 and 37,105.08

Step by Step Solution

1. Step 1: Write the proportion equation
   65,415.80 : 90,250.17 = 37,105.08 : x
2. Step 2: Convert to fraction form
   65,415.80/90,250.17 = 37,105.08/x
3. Step 3: Cross multiply
   65,415.80x = 90,250.17 × 37,105.08
4. Step 4: Simplify right side
   65,415.80x = 3,348,739,777.86
5. Step 5: Solve for x
   x = 3,348,739,777.86/65,415.80
6. Step 6: Final answer
   x = 51,191.60