Finding the Fourth Proportional to 50,874.86, 70,138.23 and 42,903.11

Step by Step Solution

1. Step 1: Write the proportion equation
   50,874.86 : 70,138.23 = 42,903.11 : x
2. Step 2: Convert to fraction form
   50,874.86/70,138.23 = 42,903.11/x
3. Step 3: Cross multiply
   50,874.86x = 70,138.23 × 42,903.11
4. Step 4: Simplify right side
   50,874.86x = 3,009,148,196.90
5. Step 5: Solve for x
   x = 3,009,148,196.90/50,874.86
6. Step 6: Final answer
   x = 59,148.04