Finding the Fourth Proportional to 90,426.65, 135,608.79 and 37,103.57

Step by Step Solution

1. Step 1: Write the proportion equation
   90,426.65 : 135,608.79 = 37,103.57 : x
2. Step 2: Convert to fraction form
   90,426.65/135,608.79 = 37,103.57/x
3. Step 3: Cross multiply
   90,426.65x = 135,608.79 × 37,103.57
4. Step 4: Simplify right side
   90,426.65x = 5,031,570,232.38
5. Step 5: Solve for x
   x = 5,031,570,232.38/90,426.65
6. Step 6: Final answer
   x = 55,642.56