Finding the Fourth Proportional to 139,595.22, 209,513.70 and 73,081.86

Step by Step Solution

1. Step 1: Write the proportion equation
   139,595.22 : 209,513.70 = 73,081.86 : x
2. Step 2: Convert to fraction form
   139,595.22/209,513.70 = 73,081.86/x
3. Step 3: Cross multiply
   139,595.22x = 209,513.70 × 73,081.86
4. Step 4: Simplify right side
   139,595.22x = 15,311,650,891.48
5. Step 5: Solve for x
   x = 15,311,650,891.48/139,595.22
6. Step 6: Final answer
   x = 109,686.07