Finding the Fourth Proportional to 101,159.13, 139,513.89 and 60,865.36

Step by Step Solution

1. Step 1: Write the proportion equation
   101,159.13 : 139,513.89 = 60,865.36 : x
2. Step 2: Convert to fraction form
   101,159.13/139,513.89 = 60,865.36/x
3. Step 3: Cross multiply
   101,159.13x = 139,513.89 × 60,865.36
4. Step 4: Simplify right side
   101,159.13x = 8,491,563,607.89
5. Step 5: Solve for x
   x = 8,491,563,607.89/101,159.13
6. Step 6: Final answer
   x = 83,942.63