Finding the Fourth Proportional to 65,320.91, 90,142.79 and 37,026.60

Step by Step Solution

1. Step 1: Write the proportion equation
   65,320.91 : 90,142.79 = 37,026.60 : x
2. Step 2: Convert to fraction form
   65,320.91/90,142.79 = 37,026.60/x
3. Step 3: Cross multiply
   65,320.91x = 90,142.79 × 37,026.60
4. Step 4: Simplify right side
   65,320.91x = 3,337,680,713.32
5. Step 5: Solve for x
   x = 3,337,680,713.32/65,320.91
6. Step 6: Final answer
   x = 51,096.67