Finding the Fourth Proportional to 72,406.10, 108,706.35 and 46,226.90

Step by Step Solution

1. Step 1: Write the proportion equation
   72,406.10 : 108,706.35 = 46,226.90 : x
2. Step 2: Convert to fraction form
   72,406.10/108,706.35 = 46,226.90/x
3. Step 3: Cross multiply
   72,406.10x = 108,706.35 × 46,226.90
4. Step 4: Simplify right side
   72,406.10x = 5,025,157,570.82
5. Step 5: Solve for x
   x = 5,025,157,570.82/72,406.10
6. Step 6: Final answer
   x = 69,402.41