Finding the Fourth Proportional to 101,142.84, 139,629.58 and 73,888.31

Step by Step Solution

1. Step 1: Write the proportion equation
   101,142.84 : 139,629.58 = 73,888.31 : x
2. Step 2: Convert to fraction form
   101,142.84/139,629.58 = 73,888.31/x
3. Step 3: Cross multiply
   101,142.84x = 139,629.58 × 73,888.31
4. Step 4: Simplify right side
   101,142.84x = 10,316,993,856.56
5. Step 5: Solve for x
   x = 10,316,993,856.56/101,142.84
6. Step 6: Final answer
   x = 102,004.19