Finding the Fourth Proportional to 77,860.38, 107,447.32 and 42,050.38

Step by Step Solution

1. Step 1: Write the proportion equation
   77,860.38 : 107,447.32 = 42,050.38 : x
2. Step 2: Convert to fraction form
   77,860.38/107,447.32 = 42,050.38/x
3. Step 3: Cross multiply
   77,860.38x = 107,447.32 × 42,050.38
4. Step 4: Simplify right side
   77,860.38x = 4,518,200,635.98
5. Step 5: Solve for x
   x = 4,518,200,635.98/77,860.38
6. Step 6: Final answer
   x = 58,029.52