Finding the Fourth Proportional to 78,077.96, 107,747.82 and 42,267.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,077.96 : 107,747.82 = 42,267.88 : x
2. Step 2: Convert to fraction form
   78,077.96/107,747.82 = 42,267.88/x
3. Step 3: Cross multiply
   78,077.96x = 107,747.82 × 42,267.88
4. Step 4: Simplify right side
   78,077.96x = 4,554,271,926.02
5. Step 5: Solve for x
   x = 4,554,271,926.02/78,077.96
6. Step 6: Final answer
   x = 58,329.80