Finding the Fourth Proportional to 90,071.33, 135,034.07 and 37,520.15

Step by Step Solution

1. Step 1: Write the proportion equation
   90,071.33 : 135,034.07 = 37,520.15 : x
2. Step 2: Convert to fraction form
   90,071.33/135,034.07 = 37,520.15/x
3. Step 3: Cross multiply
   90,071.33x = 135,034.07 × 37,520.15
4. Step 4: Simplify right side
   90,071.33x = 5,066,497,698.74
5. Step 5: Solve for x
   x = 5,066,497,698.74/90,071.33
6. Step 6: Final answer
   x = 56,249.84