Finding the Fourth Proportional to 101,076.88, 139,530.92 and 65,284.34

Step by Step Solution

1. Step 1: Write the proportion equation
   101,076.88 : 139,530.92 = 65,284.34 : x
2. Step 2: Convert to fraction form
   101,076.88/139,530.92 = 65,284.34/x
3. Step 3: Cross multiply
   101,076.88x = 139,530.92 × 65,284.34
4. Step 4: Simplify right side
   101,076.88x = 9,109,184,021.79
5. Step 5: Solve for x
   x = 9,109,184,021.79/101,076.88
6. Step 6: Final answer
   x = 90,121.34