Finding the Fourth Proportional to 139,884.57, 193,040.42 and 76,222.22

Step by Step Solution

1. Step 1: Write the proportion equation
   139,884.57 : 193,040.42 = 76,222.22 : x
2. Step 2: Convert to fraction form
   139,884.57/193,040.42 = 76,222.22/x
3. Step 3: Cross multiply
   139,884.57x = 193,040.42 × 76,222.22
4. Step 4: Simplify right side
   139,884.57x = 14,713,968,015.82
5. Step 5: Solve for x
   x = 14,713,968,015.82/139,884.57
6. Step 6: Final answer
   x = 105,186.50