Finding the Fourth Proportional to 90,333.84, 135,451.89 and 71,733.54

Step by Step Solution

1. Step 1: Write the proportion equation
   90,333.84 : 135,451.89 = 71,733.54 : x
2. Step 2: Convert to fraction form
   90,333.84/135,451.89 = 71,733.54/x
3. Step 3: Cross multiply
   90,333.84x = 135,451.89 × 71,733.54
4. Step 4: Simplify right side
   90,333.84x = 9,716,443,569.39
5. Step 5: Solve for x
   x = 9,716,443,569.39/90,333.84
6. Step 6: Final answer
   x = 107,561.50