Finding the Fourth Proportional to 139,345.89, 209,074.22 and 44,590.67

Step by Step Solution

1. Step 1: Write the proportion equation
   139,345.89 : 209,074.22 = 44,590.67 : x
2. Step 2: Convert to fraction form
   139,345.89/209,074.22 = 44,590.67/x
3. Step 3: Cross multiply
   139,345.89x = 209,074.22 × 44,590.67
4. Step 4: Simplify right side
   139,345.89x = 9,322,758,281.20
5. Step 5: Solve for x
   x = 9,322,758,281.20/139,345.89
6. Step 6: Final answer
   x = 66,903.72