Finding the Fourth Proportional to 81,331.98, 112,238.12 and 45,522

Step by Step Solution

1. Step 1: Write the proportion equation
   81,331.98 : 112,238.12 = 45,522 : x
2. Step 2: Convert to fraction form
   81,331.98/112,238.12 = 45,522/x
3. Step 3: Cross multiply
   81,331.98x = 112,238.12 × 45,522
4. Step 4: Simplify right side
   81,331.98x = 5,109,303,698.64
5. Step 5: Solve for x
   x = 5,109,303,698.64/81,331.98
6. Step 6: Final answer
   x = 62,820.35