Finding the Fourth Proportional to 112,835.60, 155,707.68 and 65,104.34

Step by Step Solution

1. Step 1: Write the proportion equation
   112,835.60 : 155,707.68 = 65,104.34 : x
2. Step 2: Convert to fraction form
   112,835.60/155,707.68 = 65,104.34/x
3. Step 3: Cross multiply
   112,835.60x = 155,707.68 × 65,104.34
4. Step 4: Simplify right side
   112,835.60x = 10,137,245,739.33
5. Step 5: Solve for x
   x = 10,137,245,739.33/112,835.60
6. Step 6: Final answer
   x = 89,840.85