Finding the Fourth Proportional to 89,062.76, 133,608.66 and 42,299.84

Step by Step Solution

1. Step 1: Write the proportion equation
   89,062.76 : 133,608.66 = 42,299.84 : x
2. Step 2: Convert to fraction form
   89,062.76/133,608.66 = 42,299.84/x
3. Step 3: Cross multiply
   89,062.76x = 133,608.66 × 42,299.84
4. Step 4: Simplify right side
   89,062.76x = 5,651,624,940.61
5. Step 5: Solve for x
   x = 5,651,624,940.61/89,062.76
6. Step 6: Final answer
   x = 63,456.66