Finding the Fourth Proportional to 72.60, 100.12 and 52.93

Step by Step Solution

1. Step 1: Write the proportion equation
   72.60 : 100.12 = 52.93 : x
2. Step 2: Convert to fraction form
   72.60/100.12 = 52.93/x
3. Step 3: Cross multiply
   72.60x = 100.12 × 52.93
4. Step 4: Simplify right side
   72.60x = 5,298.85
5. Step 5: Solve for x
   x = 5,298.85/72.60
6. Step 6: Final answer
   x = 72.99