Finding the Fourth Proportional to 115,858.56, 173,820.72 and 59,739.60

Step by Step Solution

1. Step 1: Write the proportion equation
   115,858.56 : 173,820.72 = 59,739.60 : x
2. Step 2: Convert to fraction form
   115,858.56/173,820.72 = 59,739.60/x
3. Step 3: Cross multiply
   115,858.56x = 173,820.72 × 59,739.60
4. Step 4: Simplify right side
   115,858.56x = 10,383,980,284.51
5. Step 5: Solve for x
   x = 10,383,980,284.51/115,858.56
6. Step 6: Final answer
   x = 89,626.35