Finding the Fourth Proportional to 100.99, 151.61 and 59.93

Step by Step Solution

1. Step 1: Write the proportion equation
   100.99 : 151.61 = 59.93 : x
2. Step 2: Convert to fraction form
   100.99/151.61 = 59.93/x
3. Step 3: Cross multiply
   100.99x = 151.61 × 59.93
4. Step 4: Simplify right side
   100.99x = 9,085.61
5. Step 5: Solve for x
   x = 9,085.61/100.99
6. Step 6: Final answer
   x = 89.97