Finding the Fourth Proportional to 60,636.48, 91,067.64 and 49,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,636.48 : 91,067.64 = 49,566.72 : x
2. Step 2: Convert to fraction form
   60,636.48/91,067.64 = 49,566.72/x
3. Step 3: Cross multiply
   60,636.48x = 91,067.64 × 49,566.72
4. Step 4: Simplify right side
   60,636.48x = 4,513,924,212.94
5. Step 5: Solve for x
   x = 4,513,924,212.94/60,636.48
6. Step 6: Final answer
   x = 74,442.39