Finding the Fourth Proportional to 111,456.38, 153,809.20 and 60,470.12

Step by Step Solution

1. Step 1: Write the proportion equation
   111,456.38 : 153,809.20 = 60,470.12 : x
2. Step 2: Convert to fraction form
   111,456.38/153,809.20 = 60,470.12/x
3. Step 3: Cross multiply
   111,456.38x = 153,809.20 × 60,470.12
4. Step 4: Simplify right side
   111,456.38x = 9,300,860,781.10
5. Step 5: Solve for x
   x = 9,300,860,781.10/111,456.38
6. Step 6: Final answer
   x = 83,448.44