Finding the Fourth Proportional to 50,458.51, 69,128.48 and 48,566.71

Step by Step Solution

1. Step 1: Write the proportion equation
   50,458.51 : 69,128.48 = 48,566.71 : x
2. Step 2: Convert to fraction form
   50,458.51/69,128.48 = 48,566.71/x
3. Step 3: Cross multiply
   50,458.51x = 69,128.48 × 48,566.71
4. Step 4: Simplify right side
   50,458.51x = 3,357,342,840.90
5. Step 5: Solve for x
   x = 3,357,342,840.90/50,458.51
6. Step 6: Final answer
   x = 66,536.70