Finding the Fourth Proportional to 78,159.81, 107,861.03 and 42,350.08

Step by Step Solution

1. Step 1: Write the proportion equation
   78,159.81 : 107,861.03 = 42,350.08 : x
2. Step 2: Convert to fraction form
   78,159.81/107,861.03 = 42,350.08/x
3. Step 3: Cross multiply
   78,159.81x = 107,861.03 × 42,350.08
4. Step 4: Simplify right side
   78,159.81x = 4,567,923,249.38
5. Step 5: Solve for x
   x = 4,567,923,249.38/78,159.81
6. Step 6: Final answer
   x = 58,443.38