Finding the Fourth Proportional to 90,061.97, 135,095.68 and 30,896.78

Step by Step Solution

1. Step 1: Write the proportion equation
   90,061.97 : 135,095.68 = 30,896.78 : x
2. Step 2: Convert to fraction form
   90,061.97/135,095.68 = 30,896.78/x
3. Step 3: Cross multiply
   90,061.97x = 135,095.68 × 30,896.78
4. Step 4: Simplify right side
   90,061.97x = 4,174,021,503.91
5. Step 5: Solve for x
   x = 4,174,021,503.91/90,061.97
6. Step 6: Final answer
   x = 46,346.11