Finding the Fourth Proportional to 139,595.47, 209,416.56 and 109,608.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,595.47 : 209,416.56 = 109,608.50 : x
2. Step 2: Convert to fraction form
   139,595.47/209,416.56 = 109,608.50/x
3. Step 3: Cross multiply
   139,595.47x = 209,416.56 × 109,608.50
4. Step 4: Simplify right side
   139,595.47x = 22,953,835,259.59
5. Step 5: Solve for x
   x = 22,953,835,259.59/139,595.47
6. Step 6: Final answer
   x = 164,431.09