Finding the Fourth Proportional to 100.83, 151.25 and 43.05

Step by Step Solution

1. Step 1: Write the proportion equation
   100.83 : 151.25 = 43.05 : x
2. Step 2: Convert to fraction form
   100.83/151.25 = 43.05/x
3. Step 3: Cross multiply
   100.83x = 151.25 × 43.05
4. Step 4: Simplify right side
   100.83x = 6,511.10
5. Step 5: Solve for x
   x = 6,511.10/100.83
6. Step 6: Final answer
   x = 64.58