Finding the Fourth Proportional to 97.79, 146.72 and 29.31

Step by Step Solution

1. Step 1: Write the proportion equation
   97.79 : 146.72 = 29.31 : x
2. Step 2: Convert to fraction form
   97.79/146.72 = 29.31/x
3. Step 3: Cross multiply
   97.79x = 146.72 × 29.31
4. Step 4: Simplify right side
   97.79x = 4,300.22
5. Step 5: Solve for x
   x = 4,300.22/97.79
6. Step 6: Final answer
   x = 43.98