Finding the Fourth Proportional to 112,395.26, 155,105.34 and 64,647.38

Step by Step Solution

1. Step 1: Write the proportion equation
   112,395.26 : 155,105.34 = 64,647.38 : x
2. Step 2: Convert to fraction form
   112,395.26/155,105.34 = 64,647.38/x
3. Step 3: Cross multiply
   112,395.26x = 155,105.34 × 64,647.38
4. Step 4: Simplify right side
   112,395.26x = 10,027,153,855.01
5. Step 5: Solve for x
   x = 10,027,153,855.01/112,395.26
6. Step 6: Final answer
   x = 89,213.32