Finding the Fourth Proportional to 89,795.92, 134,664.72 and 42,403.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,795.92 : 134,664.72 = 42,403.68 : x
2. Step 2: Convert to fraction form
   89,795.92/134,664.72 = 42,403.68/x
3. Step 3: Cross multiply
   89,795.92x = 134,664.72 × 42,403.68
4. Step 4: Simplify right side
   89,795.92x = 5,710,279,694.17
5. Step 5: Solve for x
   x = 5,710,279,694.17/89,795.92
6. Step 6: Final answer
   x = 63,591.75