Finding the Fourth Proportional to 78,113.75, 107,796.85 and 42,303.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,113.75 : 107,796.85 = 42,303.89 : x
2. Step 2: Convert to fraction form
   78,113.75/107,796.85 = 42,303.89/x
3. Step 3: Cross multiply
   78,113.75x = 107,796.85 × 42,303.89
4. Step 4: Simplify right side
   78,113.75x = 4,560,226,248.48
5. Step 5: Solve for x
   x = 4,560,226,248.48/78,113.75
6. Step 6: Final answer
   x = 58,379.31