Finding the Fourth Proportional to 100.87, 151.18 and 46.69

Step by Step Solution

1. Step 1: Write the proportion equation
   100.87 : 151.18 = 46.69 : x
2. Step 2: Convert to fraction form
   100.87/151.18 = 46.69/x
3. Step 3: Cross multiply
   100.87x = 151.18 × 46.69
4. Step 4: Simplify right side
   100.87x = 7,058.10
5. Step 5: Solve for x
   x = 7,058.10/100.87
6. Step 6: Final answer
   x = 69.97