Finding the Fourth Proportional to 101,383.61, 139,906.61 and 56,060.09

Step by Step Solution

1. Step 1: Write the proportion equation
   101,383.61 : 139,906.61 = 56,060.09 : x
2. Step 2: Convert to fraction form
   101,383.61/139,906.61 = 56,060.09/x
3. Step 3: Cross multiply
   101,383.61x = 139,906.61 × 56,060.09
4. Step 4: Simplify right side
   101,383.61x = 7,843,177,638.11
5. Step 5: Solve for x
   x = 7,843,177,638.11/101,383.61
6. Step 6: Final answer
   x = 77,361.39