Finding the Fourth Proportional to 72.60, 100.24 and 50.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72.60 : 100.24 = 50.83 : x
2. Step 2: Convert to fraction form
   72.60/100.24 = 50.83/x
3. Step 3: Cross multiply
   72.60x = 100.24 × 50.83
4. Step 4: Simplify right side
   72.60x = 5,094.82
5. Step 5: Solve for x
   x = 5,094.82/72.60
6. Step 6: Final answer
   x = 70.18