Finding the Fourth Proportional to 244,640.15, 366,978.45 and 86,848.10

Step by Step Solution

1. Step 1: Write the proportion equation
   244,640.15 : 366,978.45 = 86,848.10 : x
2. Step 2: Convert to fraction form
   244,640.15/366,978.45 = 86,848.10/x
3. Step 3: Cross multiply
   244,640.15x = 366,978.45 × 86,848.10
4. Step 4: Simplify right side
   244,640.15x = 31,871,381,123.45
5. Step 5: Solve for x
   x = 31,871,381,123.45/244,640.15
6. Step 6: Final answer
   x = 130,278.62