Finding the Fourth Proportional to 53.00, 73.06 and 42.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53.00 : 73.06 = 42.50 : x
2. Step 2: Convert to fraction form
   53.00/73.06 = 42.50/x
3. Step 3: Cross multiply
   53.00x = 73.06 × 42.50
4. Step 4: Simplify right side
   53.00x = 3,105.13
5. Step 5: Solve for x
   x = 3,105.13/53.00
6. Step 6: Final answer
   x = 58.59