Finding the Fourth Proportional to 111,580.59, 153,982.32 and 61,279.59

Step by Step Solution

1. Step 1: Write the proportion equation
   111,580.59 : 153,982.32 = 61,279.59 : x
2. Step 2: Convert to fraction form
   111,580.59/153,982.32 = 61,279.59/x
3. Step 3: Cross multiply
   111,580.59x = 153,982.32 × 61,279.59
4. Step 4: Simplify right side
   111,580.59x = 9,435,973,436.85
5. Step 5: Solve for x
   x = 9,435,973,436.85/111,580.59
6. Step 6: Final answer
   x = 84,566.44