Finding the Fourth Proportional to 78,043.05, 107,699.41 and 42,233.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,043.05 : 107,699.41 = 42,233.06 : x
2. Step 2: Convert to fraction form
   78,043.05/107,699.41 = 42,233.06/x
3. Step 3: Cross multiply
   78,043.05x = 107,699.41 × 42,233.06
4. Step 4: Simplify right side
   78,043.05x = 4,548,475,164.08
5. Step 5: Solve for x
   x = 4,548,475,164.08/78,043.05
6. Step 6: Final answer
   x = 58,281.62