Finding the Fourth Proportional to 164,835.67, 247,297.89 and 84,830.05

Step by Step Solution

1. Step 1: Write the proportion equation
   164,835.67 : 247,297.89 = 84,830.05 : x
2. Step 2: Convert to fraction form
   164,835.67/247,297.89 = 84,830.05/x
3. Step 3: Cross multiply
   164,835.67x = 247,297.89 × 84,830.05
4. Step 4: Simplify right side
   164,835.67x = 20,978,292,373.59
5. Step 5: Solve for x
   x = 20,978,292,373.59/164,835.67
6. Step 6: Final answer
   x = 127,267.92