Finding the Fourth Proportional to 61,231.30, 91,841.55 and 16,854.10

Step by Step Solution

1. Step 1: Write the proportion equation
   61,231.30 : 91,841.55 = 16,854.10 : x
2. Step 2: Convert to fraction form
   61,231.30/91,841.55 = 16,854.10/x
3. Step 3: Cross multiply
   61,231.30x = 91,841.55 × 16,854.10
4. Step 4: Simplify right side
   61,231.30x = 1,547,906,667.86
5. Step 5: Solve for x
   x = 1,547,906,667.86/61,231.30
6. Step 6: Final answer
   x = 25,279.66