Finding the Fourth Proportional to 42,978.03, 64,486.41 and 23,233.47

Step by Step Solution

1. Step 1: Write the proportion equation
   42,978.03 : 64,486.41 = 23,233.47 : x
2. Step 2: Convert to fraction form
   42,978.03/64,486.41 = 23,233.47/x
3. Step 3: Cross multiply
   42,978.03x = 64,486.41 × 23,233.47
4. Step 4: Simplify right side
   42,978.03x = 1,498,243,072.14
5. Step 5: Solve for x
   x = 1,498,243,072.14/42,978.03
6. Step 6: Final answer
   x = 34,860.67