Finding the Fourth Proportional to 109,405.69, 150,979.85 and 59,104.69

Step by Step Solution

1. Step 1: Write the proportion equation
   109,405.69 : 150,979.85 = 59,104.69 : x
2. Step 2: Convert to fraction form
   109,405.69/150,979.85 = 59,104.69/x
3. Step 3: Cross multiply
   109,405.69x = 150,979.85 × 59,104.69
4. Step 4: Simplify right side
   109,405.69x = 8,923,616,779.17
5. Step 5: Solve for x
   x = 8,923,616,779.17/109,405.69
6. Step 6: Final answer
   x = 81,564.47