Finding the Fourth Proportional to 259,002.17, 388,556.00 and 109,243.02

Step by Step Solution

1. Step 1: Write the proportion equation
   259,002.17 : 388,556.00 = 109,243.02 : x
2. Step 2: Convert to fraction form
   259,002.17/388,556.00 = 109,243.02/x
3. Step 3: Cross multiply
   259,002.17x = 388,556.00 × 109,243.02
4. Step 4: Simplify right side
   259,002.17x = 42,447,031,152.23
5. Step 5: Solve for x
   x = 42,447,031,152.23/259,002.17
6. Step 6: Final answer
   x = 163,886.78