Finding the Fourth Proportional to 42,299.49, 58,373.88 and 23,178.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,299.49 : 58,373.88 = 23,178.89 : x
2. Step 2: Convert to fraction form
   42,299.49/58,373.88 = 23,178.89/x
3. Step 3: Cross multiply
   42,299.49x = 58,373.88 × 23,178.89
4. Step 4: Simplify right side
   42,299.49x = 1,353,041,451.52
5. Step 5: Solve for x
   x = 1,353,041,451.52/42,299.49
6. Step 6: Final answer
   x = 31,987.18