Finding the Fourth Proportional to 78,613.40, 117,938.54 and 26,022.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,613.40 : 117,938.54 = 26,022.88 : x
2. Step 2: Convert to fraction form
   78,613.40/117,938.54 = 26,022.88/x
3. Step 3: Cross multiply
   78,613.40x = 117,938.54 × 26,022.88
4. Step 4: Simplify right side
   78,613.40x = 3,069,099,884.10
5. Step 5: Solve for x
   x = 3,069,099,884.10/78,613.40
6. Step 6: Final answer
   x = 39,040.42