Finding the Fourth Proportional to 111,120, 153,345.60 and 60,819

Step by Step Solution

1. Step 1: Write the proportion equation
   111,120 : 153,345.60 = 60,819 : x
2. Step 2: Convert to fraction form
   111,120/153,345.60 = 60,819/x
3. Step 3: Cross multiply
   111,120x = 153,345.60 × 60,819
4. Step 4: Simplify right side
   111,120x = 9,326,326,046.40
5. Step 5: Solve for x
   x = 9,326,326,046.40/111,120
6. Step 6: Final answer
   x = 83,930.22