Finding the Fourth Proportional to 108,458.10, 162,756.27 and 46,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   108,458.10 : 162,756.27 = 46,128.50 : x
2. Step 2: Convert to fraction form
   108,458.10/162,756.27 = 46,128.50/x
3. Step 3: Cross multiply
   108,458.10x = 162,756.27 × 46,128.50
4. Step 4: Simplify right side
   108,458.10x = 7,507,702,600.70
5. Step 5: Solve for x
   x = 7,507,702,600.70/108,458.10
6. Step 6: Final answer
   x = 69,222.15