Finding the Fourth Proportional to 139,885.32, 193,040.92 and 76,222.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,885.32 : 193,040.92 = 76,222.92 : x
2. Step 2: Convert to fraction form
   139,885.32/193,040.92 = 76,222.92/x
3. Step 3: Cross multiply
   139,885.32x = 193,040.92 × 76,222.92
4. Step 4: Simplify right side
   139,885.32x = 14,714,142,601.89
5. Step 5: Solve for x
   x = 14,714,142,601.89/139,885.32
6. Step 6: Final answer
   x = 105,187.18