Finding the Fourth Proportional to 101,256.67, 139,728.42 and 60,466.84

Step by Step Solution

1. Step 1: Write the proportion equation
   101,256.67 : 139,728.42 = 60,466.84 : x
2. Step 2: Convert to fraction form
   101,256.67/139,728.42 = 60,466.84/x
3. Step 3: Cross multiply
   101,256.67x = 139,728.42 × 60,466.84
4. Step 4: Simplify right side
   101,256.67x = 8,448,936,015.59
5. Step 5: Solve for x
   x = 8,448,936,015.59/101,256.67
6. Step 6: Final answer
   x = 83,440.78