Finding the Fourth Proportional to 81,111.96, 111,933.34 and 45,302.49

Step by Step Solution

1. Step 1: Write the proportion equation
   81,111.96 : 111,933.34 = 45,302.49 : x
2. Step 2: Convert to fraction form
   81,111.96/111,933.34 = 45,302.49/x
3. Step 3: Cross multiply
   81,111.96x = 111,933.34 × 45,302.49
4. Step 4: Simplify right side
   81,111.96x = 5,070,858,902.76
5. Step 5: Solve for x
   x = 5,070,858,902.76/81,111.96
6. Step 6: Final answer
   x = 62,516.78