Finding the Fourth Proportional to 142,109.52, 212,931 and 48,564.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,109.52 : 212,931 = 48,564.24 : x
2. Step 2: Convert to fraction form
   142,109.52/212,931 = 48,564.24/x
3. Step 3: Cross multiply
   142,109.52x = 212,931 × 48,564.24
4. Step 4: Simplify right side
   142,109.52x = 10,340,832,187.44
5. Step 5: Solve for x
   x = 10,340,832,187.44/142,109.52
6. Step 6: Final answer
   x = 72,766.64