Finding the Fourth Proportional to 42,678.78, 58,894.34 and 23,817.12

Step by Step Solution

1. Step 1: Write the proportion equation
   42,678.78 : 58,894.34 = 23,817.12 : x
2. Step 2: Convert to fraction form
   42,678.78/58,894.34 = 23,817.12/x
3. Step 3: Cross multiply
   42,678.78x = 58,894.34 × 23,817.12
4. Step 4: Simplify right side
   42,678.78x = 1,402,693,444.02
5. Step 5: Solve for x
   x = 1,402,693,444.02/42,678.78
6. Step 6: Final answer
   x = 32,866.30