Finding the Fourth Proportional to 78,506.72, 117,748.56 and 25,917.92

Step by Step Solution

1. Step 1: Write the proportion equation
   78,506.72 : 117,748.56 = 25,917.92 : x
2. Step 2: Convert to fraction form
   78,506.72/117,748.56 = 25,917.92/x
3. Step 3: Cross multiply
   78,506.72x = 117,748.56 × 25,917.92
4. Step 4: Simplify right side
   78,506.72x = 3,051,797,758.20
5. Step 5: Solve for x
   x = 3,051,797,758.20/78,506.72
6. Step 6: Final answer
   x = 38,873.08