Finding the Fourth Proportional to 61.12, 91.72 and 29.06

Step by Step Solution

1. Step 1: Write the proportion equation
   61.12 : 91.72 = 29.06 : x
2. Step 2: Convert to fraction form
   61.12/91.72 = 29.06/x
3. Step 3: Cross multiply
   61.12x = 91.72 × 29.06
4. Step 4: Simplify right side
   61.12x = 2,665.38
5. Step 5: Solve for x
   x = 2,665.38/61.12
6. Step 6: Final answer
   x = 43.61