Finding the Fourth Proportional to 52,164.24, 78,260.94 and 17,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,164.24 : 78,260.94 = 17,128.50 : x
2. Step 2: Convert to fraction form
   52,164.24/78,260.94 = 17,128.50/x
3. Step 3: Cross multiply
   52,164.24x = 78,260.94 × 17,128.50
4. Step 4: Simplify right side
   52,164.24x = 1,340,492,510.79
5. Step 5: Solve for x
   x = 1,340,492,510.79/52,164.24
6. Step 6: Final answer
   x = 25,697.54