Finding the Fourth Proportional to 101,142.27, 139,628.79 and 73,887.75

Step by Step Solution

1. Step 1: Write the proportion equation
   101,142.27 : 139,628.79 = 73,887.75 : x
2. Step 2: Convert to fraction form
   101,142.27/139,628.79 = 73,887.75/x
3. Step 3: Cross multiply
   101,142.27x = 139,628.79 × 73,887.75
4. Step 4: Simplify right side
   101,142.27x = 10,316,857,128.32
5. Step 5: Solve for x
   x = 10,316,857,128.32/101,142.27
6. Step 6: Final answer
   x = 102,003.42