Finding the Fourth Proportional to 77,857.52, 107,443.38 and 42,047.54

Step by Step Solution

1. Step 1: Write the proportion equation
   77,857.52 : 107,443.38 = 42,047.54 : x
2. Step 2: Convert to fraction form
   77,857.52/107,443.38 = 42,047.54/x
3. Step 3: Cross multiply
   77,857.52x = 107,443.38 × 42,047.54
4. Step 4: Simplify right side
   77,857.52x = 4,517,729,818.29
5. Step 5: Solve for x
   x = 4,517,729,818.29/77,857.52
6. Step 6: Final answer
   x = 58,025.61