Finding the Fourth Proportional to 90,151.74, 135,294.05 and 42,766.98

Step by Step Solution

1. Step 1: Write the proportion equation
   90,151.74 : 135,294.05 = 42,766.98 : x
2. Step 2: Convert to fraction form
   90,151.74/135,294.05 = 42,766.98/x
3. Step 3: Cross multiply
   90,151.74x = 135,294.05 × 42,766.98
4. Step 4: Simplify right side
   90,151.74x = 5,786,117,930.47
5. Step 5: Solve for x
   x = 5,786,117,930.47/90,151.74
6. Step 6: Final answer
   x = 64,181.99