Finding the Fourth Proportional to 90,519.53, 135,780.71 and 34,344.81

Step by Step Solution

1. Step 1: Write the proportion equation
   90,519.53 : 135,780.71 = 34,344.81 : x
2. Step 2: Convert to fraction form
   90,519.53/135,780.71 = 34,344.81/x
3. Step 3: Cross multiply
   90,519.53x = 135,780.71 × 34,344.81
4. Step 4: Simplify right side
   90,519.53x = 4,663,362,514.89
5. Step 5: Solve for x
   x = 4,663,362,514.89/90,519.53
6. Step 6: Final answer
   x = 51,517.75