Finding the Fourth Proportional to 65,400.86, 90,242.42 and 41,198.06

Step by Step Solution

1. Step 1: Write the proportion equation
   65,400.86 : 90,242.42 = 41,198.06 : x
2. Step 2: Convert to fraction form
   65,400.86/90,242.42 = 41,198.06/x
3. Step 3: Cross multiply
   65,400.86x = 90,242.42 × 41,198.06
4. Step 4: Simplify right side
   65,400.86x = 3,717,812,633.71
5. Step 5: Solve for x
   x = 3,717,812,633.71/65,400.86
6. Step 6: Final answer
   x = 56,846.54