Finding the Fourth Proportional to 215,436.42, 323,008.83 and 75,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,436.42 : 323,008.83 = 75,118.50 : x
2. Step 2: Convert to fraction form
   215,436.42/323,008.83 = 75,118.50/x
3. Step 3: Cross multiply
   215,436.42x = 323,008.83 × 75,118.50
4. Step 4: Simplify right side
   215,436.42x = 24,263,938,796.36
5. Step 5: Solve for x
   x = 24,263,938,796.36/215,436.42
6. Step 6: Final answer
   x = 112,626.91