Finding the Fourth Proportional to 52,890.86, 78,786.55 and 50,025.99

Step by Step Solution

1. Step 1: Write the proportion equation
   52,890.86 : 78,786.55 = 50,025.99 : x
2. Step 2: Convert to fraction form
   52,890.86/78,786.55 = 50,025.99/x
3. Step 3: Cross multiply
   52,890.86x = 78,786.55 × 50,025.99
4. Step 4: Simplify right side
   52,890.86x = 3,941,375,162.43
5. Step 5: Solve for x
   x = 3,941,375,162.43/52,890.86
6. Step 6: Final answer
   x = 74,519.02