Finding the Fourth Proportional to 106,942.17, 160,404.90 and 28,054.35

Step by Step Solution

1. Step 1: Write the proportion equation
   106,942.17 : 160,404.90 = 28,054.35 : x
2. Step 2: Convert to fraction form
   106,942.17/160,404.90 = 28,054.35/x
3. Step 3: Cross multiply
   106,942.17x = 160,404.90 × 28,054.35
4. Step 4: Simplify right side
   106,942.17x = 4,500,055,206.32
5. Step 5: Solve for x
   x = 4,500,055,206.32/106,942.17
6. Step 6: Final answer
   x = 42,079.33