Finding the Fourth Proportional to 106,978.32, 147,654.84 and 71,169.84

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.32 : 147,654.84 = 71,169.84 : x
2. Step 2: Convert to fraction form
   106,978.32/147,654.84 = 71,169.84/x
3. Step 3: Cross multiply
   106,978.32x = 147,654.84 × 71,169.84
4. Step 4: Simplify right side
   106,978.32x = 10,508,571,338.03
5. Step 5: Solve for x
   x = 10,508,571,338.03/106,978.32
6. Step 6: Final answer
   x = 98,230.85