Finding the Fourth Proportional to 93.40, 139.98 and 42.04

Step by Step Solution

1. Step 1: Write the proportion equation
   93.40 : 139.98 = 42.04 : x
2. Step 2: Convert to fraction form
   93.40/139.98 = 42.04/x
3. Step 3: Cross multiply
   93.40x = 139.98 × 42.04
4. Step 4: Simplify right side
   93.40x = 5,884.76
5. Step 5: Solve for x
   x = 5,884.76/93.40
6. Step 6: Final answer
   x = 63.01