Finding the Fourth Proportional to 73.16, 100.98 and 42.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73.16 : 100.98 = 42.10 : x
2. Step 2: Convert to fraction form
   73.16/100.98 = 42.10/x
3. Step 3: Cross multiply
   73.16x = 100.98 × 42.10
4. Step 4: Simplify right side
   73.16x = 4,251.26
5. Step 5: Solve for x
   x = 4,251.26/73.16
6. Step 6: Final answer
   x = 58.11