Finding the Fourth Proportional to 113,124.76, 155,982.78 and 72,233.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,124.76 : 155,982.78 = 72,233.34 : x
2. Step 2: Convert to fraction form
   113,124.76/155,982.78 = 72,233.34/x
3. Step 3: Cross multiply
   113,124.76x = 155,982.78 × 72,233.34
4. Step 4: Simplify right side
   113,124.76x = 11,267,157,181.89
5. Step 5: Solve for x
   x = 11,267,157,181.89/113,124.76
6. Step 6: Final answer
   x = 99,599.39