Finding the Fourth Proportional to 78,193.42, 107,907.49 and 42,383.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78,193.42 : 107,907.49 = 42,383.69 : x
2. Step 2: Convert to fraction form
   78,193.42/107,907.49 = 42,383.69/x
3. Step 3: Cross multiply
   78,193.42x = 107,907.49 × 42,383.69
4. Step 4: Simplify right side
   78,193.42x = 4,573,517,522.93
5. Step 5: Solve for x
   x = 4,573,517,522.93/78,193.42
6. Step 6: Final answer
   x = 58,489.80