Finding the Fourth Proportional to 42,812.37, 64,228.32 and 23,090.49

Step by Step Solution

1. Step 1: Write the proportion equation
   42,812.37 : 64,228.32 = 23,090.49 : x
2. Step 2: Convert to fraction form
   42,812.37/64,228.32 = 23,090.49/x
3. Step 3: Cross multiply
   42,812.37x = 64,228.32 × 23,090.49
4. Step 4: Simplify right side
   42,812.37x = 1,483,063,380.68
5. Step 5: Solve for x
   x = 1,483,063,380.68/42,812.37
6. Step 6: Final answer
   x = 34,641.00