Finding the Fourth Proportional to 42.63, 64.01 and 37.01

Step by Step Solution

1. Step 1: Write the proportion equation
   42.63 : 64.01 = 37.01 : x
2. Step 2: Convert to fraction form
   42.63/64.01 = 37.01/x
3. Step 3: Cross multiply
   42.63x = 64.01 × 37.01
4. Step 4: Simplify right side
   42.63x = 2,368.51
5. Step 5: Solve for x
   x = 2,368.51/42.63
6. Step 6: Final answer
   x = 55.56