Finding the Fourth Proportional to 76,940.07, 106,179.32 and 42,948.42

Step by Step Solution

1. Step 1: Write the proportion equation
   76,940.07 : 106,179.32 = 42,948.42 : x
2. Step 2: Convert to fraction form
   76,940.07/106,179.32 = 42,948.42/x
3. Step 3: Cross multiply
   76,940.07x = 106,179.32 × 42,948.42
4. Step 4: Simplify right side
   76,940.07x = 4,560,234,030.67
5. Step 5: Solve for x
   x = 4,560,234,030.67/76,940.07
6. Step 6: Final answer
   x = 59,269.95