Finding the Fourth Proportional to 42,812.40, 64,218.69 and 23,100.24

Step by Step Solution

1. Step 1: Write the proportion equation
   42,812.40 : 64,218.69 = 23,100.24 : x
2. Step 2: Convert to fraction form
   42,812.40/64,218.69 = 23,100.24/x
3. Step 3: Cross multiply
   42,812.40x = 64,218.69 × 23,100.24
4. Step 4: Simplify right side
   42,812.40x = 1,483,467,151.49
5. Step 5: Solve for x
   x = 1,483,467,151.49/42,812.40
6. Step 6: Final answer
   x = 34,650.41