Finding the Fourth Proportional to 100.61, 150.18 and 93.08

Step by Step Solution

1. Step 1: Write the proportion equation
   100.61 : 150.18 = 93.08 : x
2. Step 2: Convert to fraction form
   100.61/150.18 = 93.08/x
3. Step 3: Cross multiply
   100.61x = 150.18 × 93.08
4. Step 4: Simplify right side
   100.61x = 13,978.78
5. Step 5: Solve for x
   x = 13,978.78/100.61
6. Step 6: Final answer
   x = 138.94