Finding the Fourth Proportional to 42,978.04, 64,486.40 and 23,233.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,978.04 : 64,486.40 = 23,233.48 : x
2. Step 2: Convert to fraction form
   42,978.04/64,486.40 = 23,233.48/x
3. Step 3: Cross multiply
   42,978.04x = 64,486.40 × 23,233.48
4. Step 4: Simplify right side
   42,978.04x = 1,498,243,207.29
5. Step 5: Solve for x
   x = 1,498,243,207.29/42,978.04
6. Step 6: Final answer
   x = 34,860.67