Finding the Fourth Proportional to 92.51, 127.63 and 59.31

Step by Step Solution

1. Step 1: Write the proportion equation
   92.51 : 127.63 = 59.31 : x
2. Step 2: Convert to fraction form
   92.51/127.63 = 59.31/x
3. Step 3: Cross multiply
   92.51x = 127.63 × 59.31
4. Step 4: Simplify right side
   92.51x = 7,569.59
5. Step 5: Solve for x
   x = 7,569.59/92.51
6. Step 6: Final answer
   x = 81.82