Finding the Fourth Proportional to 139,610.58, 209,536.79 and 73,097.25

Step by Step Solution

1. Step 1: Write the proportion equation
   139,610.58 : 209,536.79 = 73,097.25 : x
2. Step 2: Convert to fraction form
   139,610.58/209,536.79 = 73,097.25/x
3. Step 3: Cross multiply
   139,610.58x = 209,536.79 × 73,097.25
4. Step 4: Simplify right side
   139,610.58x = 15,316,562,757.34
5. Step 5: Solve for x
   x = 15,316,562,757.34/139,610.58
6. Step 6: Final answer
   x = 109,709.18