Finding the Fourth Proportional to 127.99, 191.89 and 59.47

Step by Step Solution

1. Step 1: Write the proportion equation
   127.99 : 191.89 = 59.47 : x
2. Step 2: Convert to fraction form
   127.99/191.89 = 59.47/x
3. Step 3: Cross multiply
   127.99x = 191.89 × 59.47
4. Step 4: Simplify right side
   127.99x = 11,411.70
5. Step 5: Solve for x
   x = 11,411.70/127.99
6. Step 6: Final answer
   x = 89.16