Finding the Fourth Proportional to 60,536.52, 90,831.42 and 30,978.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,536.52 : 90,831.42 = 30,978.72 : x
2. Step 2: Convert to fraction form
   60,536.52/90,831.42 = 30,978.72/x
3. Step 3: Cross multiply
   60,536.52x = 90,831.42 × 30,978.72
4. Step 4: Simplify right side
   60,536.52x = 2,813,841,127.38
5. Step 5: Solve for x
   x = 2,813,841,127.38/60,536.52
6. Step 6: Final answer
   x = 46,481.71