Finding the Fourth Proportional to 106,800.21, 160,200.72 and 100,304.82

Step by Step Solution

1. Step 1: Write the proportion equation
   106,800.21 : 160,200.72 = 100,304.82 : x
2. Step 2: Convert to fraction form
   106,800.21/160,200.72 = 100,304.82/x
3. Step 3: Cross multiply
   106,800.21x = 160,200.72 × 100,304.82
4. Step 4: Simplify right side
   106,800.21x = 16,068,904,383.47
5. Step 5: Solve for x
   x = 16,068,904,383.47/106,800.21
6. Step 6: Final answer
   x = 150,457.61