Finding the Fourth Proportional to 81,895.47, 113,077.34 and 80,587.62

Step by Step Solution

1. Step 1: Write the proportion equation
   81,895.47 : 113,077.34 = 80,587.62 : x
2. Step 2: Convert to fraction form
   81,895.47/113,077.34 = 80,587.62/x
3. Step 3: Cross multiply
   81,895.47x = 113,077.34 × 80,587.62
4. Step 4: Simplify right side
   81,895.47x = 9,112,633,303.59
5. Step 5: Solve for x
   x = 9,112,633,303.59/81,895.47
6. Step 6: Final answer
   x = 111,271.52