Finding the Fourth Proportional to 101,162.72, 139,607.44 and 55,843.36

Step by Step Solution

1. Step 1: Write the proportion equation
   101,162.72 : 139,607.44 = 55,843.36 : x
2. Step 2: Convert to fraction form
   101,162.72/139,607.44 = 55,843.36/x
3. Step 3: Cross multiply
   101,162.72x = 139,607.44 × 55,843.36
4. Step 4: Simplify right side
   101,162.72x = 7,796,148,530.60
5. Step 5: Solve for x
   x = 7,796,148,530.60/101,162.72
6. Step 6: Final answer
   x = 77,065.43