Finding the Fourth Proportional to 76,055.20, 113,971.86 and 42,784.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,055.20 : 113,971.86 = 42,784.54 : x
2. Step 2: Convert to fraction form
   76,055.20/113,971.86 = 42,784.54/x
3. Step 3: Cross multiply
   76,055.20x = 113,971.86 × 42,784.54
4. Step 4: Simplify right side
   76,055.20x = 4,876,233,603.04
5. Step 5: Solve for x
   x = 4,876,233,603.04/76,055.20
6. Step 6: Final answer
   x = 64,114.40