Finding the Fourth Proportional to 50,107.86, 68,991.48 and 42,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,107.86 : 68,991.48 = 42,538.50 : x
2. Step 2: Convert to fraction form
   50,107.86/68,991.48 = 42,538.50/x
3. Step 3: Cross multiply
   50,107.86x = 68,991.48 × 42,538.50
4. Step 4: Simplify right side
   50,107.86x = 2,934,794,071.98
5. Step 5: Solve for x
   x = 2,934,794,071.98/50,107.86
6. Step 6: Final answer
   x = 58,569.54