Finding the Fourth Proportional to 90,074.86, 135,066.38 and 30,081.76

Step by Step Solution

1. Step 1: Write the proportion equation
   90,074.86 : 135,066.38 = 30,081.76 : x
2. Step 2: Convert to fraction form
   90,074.86/135,066.38 = 30,081.76/x
3. Step 3: Cross multiply
   90,074.86x = 135,066.38 × 30,081.76
4. Step 4: Simplify right side
   90,074.86x = 4,063,034,164.77
5. Step 5: Solve for x
   x = 4,063,034,164.77/90,074.86
6. Step 6: Final answer
   x = 45,107.31