Finding the Fourth Proportional to 61,106.75, 91,610.85 and 21,642.34

Step by Step Solution

1. Step 1: Write the proportion equation
   61,106.75 : 91,610.85 = 21,642.34 : x
2. Step 2: Convert to fraction form
   61,106.75/91,610.85 = 21,642.34/x
3. Step 3: Cross multiply
   61,106.75x = 91,610.85 × 21,642.34
4. Step 4: Simplify right side
   61,106.75x = 1,982,673,065.55
5. Step 5: Solve for x
   x = 1,982,673,065.55/61,106.75
6. Step 6: Final answer
   x = 32,446.05