Finding the Fourth Proportional to 65,074.05, 97,618.25 and 20,690.42

Step by Step Solution

1. Step 1: Write the proportion equation
   65,074.05 : 97,618.25 = 20,690.42 : x
2. Step 2: Convert to fraction form
   65,074.05/97,618.25 = 20,690.42/x
3. Step 3: Cross multiply
   65,074.05x = 97,618.25 × 20,690.42
4. Step 4: Simplify right side
   65,074.05x = 2,019,762,588.52
5. Step 5: Solve for x
   x = 2,019,762,588.52/65,074.05
6. Step 6: Final answer
   x = 31,037.91