Finding the Fourth Proportional to 55,131.71, 82,448.33 and 42,479.91

Step by Step Solution

1. Step 1: Write the proportion equation
   55,131.71 : 82,448.33 = 42,479.91 : x
2. Step 2: Convert to fraction form
   55,131.71/82,448.33 = 42,479.91/x
3. Step 3: Cross multiply
   55,131.71x = 82,448.33 × 42,479.91
4. Step 4: Simplify right side
   55,131.71x = 3,502,397,425.65
5. Step 5: Solve for x
   x = 3,502,397,425.65/55,131.71
6. Step 6: Final answer
   x = 63,527.83