Finding the Fourth Proportional to 78,051.87, 107,711.58 and 42,241.89

Step by Step Solution

1. Step 1: Write the proportion equation
   78,051.87 : 107,711.58 = 42,241.89 : x
2. Step 2: Convert to fraction form
   78,051.87/107,711.58 = 42,241.89/x
3. Step 3: Cross multiply
   78,051.87x = 107,711.58 × 42,241.89
4. Step 4: Simplify right side
   78,051.87x = 4,549,940,714.09
5. Step 5: Solve for x
   x = 4,549,940,714.09/78,051.87
6. Step 6: Final answer
   x = 58,293.81