Finding the Fourth Proportional to 81,841.96, 112,452.41 and 65,045.80

Step by Step Solution

1. Step 1: Write the proportion equation
   81,841.96 : 112,452.41 = 65,045.80 : x
2. Step 2: Convert to fraction form
   81,841.96/112,452.41 = 65,045.80/x
3. Step 3: Cross multiply
   81,841.96x = 112,452.41 × 65,045.80
4. Step 4: Simplify right side
   81,841.96x = 7,314,556,970.38
5. Step 5: Solve for x
   x = 7,314,556,970.38/81,841.96
6. Step 6: Final answer
   x = 89,374.17