Finding the Fourth Proportional to 90,443.87, 135,647.33 and 34,264.61

Step by Step Solution

1. Step 1: Write the proportion equation
   90,443.87 : 135,647.33 = 34,264.61 : x
2. Step 2: Convert to fraction form
   90,443.87/135,647.33 = 34,264.61/x
3. Step 3: Cross multiply
   90,443.87x = 135,647.33 × 34,264.61
4. Step 4: Simplify right side
   90,443.87x = 4,647,902,010.43
5. Step 5: Solve for x
   x = 4,647,902,010.43/90,443.87
6. Step 6: Final answer
   x = 51,389.91