Finding the Fourth Proportional to 111,448.80, 153,798.06 and 61,147.80

Step by Step Solution

1. Step 1: Write the proportion equation
   111,448.80 : 153,798.06 = 61,147.80 : x
2. Step 2: Convert to fraction form
   111,448.80/153,798.06 = 61,147.80/x
3. Step 3: Cross multiply
   111,448.80x = 153,798.06 × 61,147.80
4. Step 4: Simplify right side
   111,448.80x = 9,404,413,013.27
5. Step 5: Solve for x
   x = 9,404,413,013.27/111,448.80
6. Step 6: Final answer
   x = 84,383.26