Finding the Fourth Proportional to 61.32, 83.89 and 60.98

Step by Step Solution

1. Step 1: Write the proportion equation
   61.32 : 83.89 = 60.98 : x
2. Step 2: Convert to fraction form
   61.32/83.89 = 60.98/x
3. Step 3: Cross multiply
   61.32x = 83.89 × 60.98
4. Step 4: Simplify right side
   61.32x = 5,115.61
5. Step 5: Solve for x
   x = 5,115.61/61.32
6. Step 6: Final answer
   x = 83.42