Finding the Fourth Proportional to 31,012.22, 42,795.60 and 18,265.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,012.22 : 42,795.60 = 18,265.94 : x
2. Step 2: Convert to fraction form
   31,012.22/42,795.60 = 18,265.94/x
3. Step 3: Cross multiply
   31,012.22x = 42,795.60 × 18,265.94
4. Step 4: Simplify right side
   31,012.22x = 781,701,861.86
5. Step 5: Solve for x
   x = 781,701,861.86/31,012.22
6. Step 6: Final answer
   x = 25,206.25