Finding the Fourth Proportional to 139,597.47, 209,419.56 and 109,610.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,597.47 : 209,419.56 = 109,610.50 : x
2. Step 2: Convert to fraction form
   139,597.47/209,419.56 = 109,610.50/x
3. Step 3: Cross multiply
   139,597.47x = 209,419.56 × 109,610.50
4. Step 4: Simplify right side
   139,597.47x = 22,954,582,681.38
5. Step 5: Solve for x
   x = 22,954,582,681.38/139,597.47
6. Step 6: Final answer
   x = 164,434.09