Finding the Fourth Proportional to 173,298.15, 259,964.37 and 72,075.42

Step by Step Solution

1. Step 1: Write the proportion equation
   173,298.15 : 259,964.37 = 72,075.42 : x
2. Step 2: Convert to fraction form
   173,298.15/259,964.37 = 72,075.42/x
3. Step 3: Cross multiply
   173,298.15x = 259,964.37 × 72,075.42
4. Step 4: Simplify right side
   173,298.15x = 18,737,041,152.79
5. Step 5: Solve for x
   x = 18,737,041,152.79/173,298.15
6. Step 6: Final answer
   x = 108,120.26