Finding the Fourth Proportional to 215,341.88, 323,015.55 and 75,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,341.88 : 323,015.55 = 75,100.50 : x
2. Step 2: Convert to fraction form
   215,341.88/323,015.55 = 75,100.50/x
3. Step 3: Cross multiply
   215,341.88x = 323,015.55 × 75,100.50
4. Step 4: Simplify right side
   215,341.88x = 24,258,629,031.15
5. Step 5: Solve for x
   x = 24,258,629,031.15/215,341.88
6. Step 6: Final answer
   x = 112,651.70