Finding the Fourth Proportional to 76,774.73, 105,946.38 and 42,781.46

Step by Step Solution

1. Step 1: Write the proportion equation
   76,774.73 : 105,946.38 = 42,781.46 : x
2. Step 2: Convert to fraction form
   76,774.73/105,946.38 = 42,781.46/x
3. Step 3: Cross multiply
   76,774.73x = 105,946.38 × 42,781.46
4. Step 4: Simplify right side
   76,774.73x = 4,532,540,288.38
5. Step 5: Solve for x
   x = 4,532,540,288.38/76,774.73
6. Step 6: Final answer
   x = 59,036.88