Finding the Fourth Proportional to 78,176.07, 107,882.55 and 42,365.70

Step by Step Solution

1. Step 1: Write the proportion equation
   78,176.07 : 107,882.55 = 42,365.70 : x
2. Step 2: Convert to fraction form
   78,176.07/107,882.55 = 42,365.70/x
3. Step 3: Cross multiply
   78,176.07x = 107,882.55 × 42,365.70
4. Step 4: Simplify right side
   78,176.07x = 4,570,519,748.54
5. Step 5: Solve for x
   x = 4,570,519,748.54/78,176.07
6. Step 6: Final answer
   x = 58,464.43