Finding the Fourth Proportional to 112,906.02, 155,817.20 and 65,162.44

Step by Step Solution

1. Step 1: Write the proportion equation
   112,906.02 : 155,817.20 = 65,162.44 : x
2. Step 2: Convert to fraction form
   112,906.02/155,817.20 = 65,162.44/x
3. Step 3: Cross multiply
   112,906.02x = 155,817.20 × 65,162.44
4. Step 4: Simplify right side
   112,906.02x = 10,153,429,303.65
5. Step 5: Solve for x
   x = 10,153,429,303.65/112,906.02
6. Step 6: Final answer
   x = 89,928.15