Finding the Fourth Proportional to 81,109.76, 111,932 and 45,302.96

Step by Step Solution

1. Step 1: Write the proportion equation
   81,109.76 : 111,932 = 45,302.96 : x
2. Step 2: Convert to fraction form
   81,109.76/111,932 = 45,302.96/x
3. Step 3: Cross multiply
   81,109.76x = 111,932 × 45,302.96
4. Step 4: Simplify right side
   81,109.76x = 5,070,850,918.72
5. Step 5: Solve for x
   x = 5,070,850,918.72/81,109.76
6. Step 6: Final answer
   x = 62,518.38