Finding the Fourth Proportional to 76,842.50, 106,038.56 and 42,854.48

Step by Step Solution

1. Step 1: Write the proportion equation
   76,842.50 : 106,038.56 = 42,854.48 : x
2. Step 2: Convert to fraction form
   76,842.50/106,038.56 = 42,854.48/x
3. Step 3: Cross multiply
   76,842.50x = 106,038.56 × 42,854.48
4. Step 4: Simplify right side
   76,842.50x = 4,544,227,348.75
5. Step 5: Solve for x
   x = 4,544,227,348.75/76,842.50
6. Step 6: Final answer
   x = 59,136.90