Finding the Fourth Proportional to 111,487.56, 153,851.31 and 61,186.56

Step by Step Solution

1. Step 1: Write the proportion equation
   111,487.56 : 153,851.31 = 61,186.56 : x
2. Step 2: Convert to fraction form
   111,487.56/153,851.31 = 61,186.56/x
3. Step 3: Cross multiply
   111,487.56x = 153,851.31 × 61,186.56
4. Step 4: Simplify right side
   111,487.56x = 9,413,632,410.39
5. Step 5: Solve for x
   x = 9,413,632,410.39/111,487.56
6. Step 6: Final answer
   x = 84,436.62