Finding the Fourth Proportional to 259,068.42, 388,655.01 and 109,309.02

Step by Step Solution

1. Step 1: Write the proportion equation
   259,068.42 : 388,655.01 = 109,309.02 : x
2. Step 2: Convert to fraction form
   259,068.42/388,655.01 = 109,309.02/x
3. Step 3: Cross multiply
   259,068.42x = 388,655.01 × 109,309.02
4. Step 4: Simplify right side
   259,068.42x = 42,483,498,261.19
5. Step 5: Solve for x
   x = 42,483,498,261.19/259,068.42
6. Step 6: Final answer
   x = 163,985.63