Finding the Fourth Proportional to 76,076.88, 104,991.24 and 42,543.12

Step by Step Solution

1. Step 1: Write the proportion equation
   76,076.88 : 104,991.24 = 42,543.12 : x
2. Step 2: Convert to fraction form
   76,076.88/104,991.24 = 42,543.12/x
3. Step 3: Cross multiply
   76,076.88x = 104,991.24 × 42,543.12
4. Step 4: Simplify right side
   76,076.88x = 4,466,654,922.27
5. Step 5: Solve for x
   x = 4,466,654,922.27/76,076.88
6. Step 6: Final answer
   x = 58,712.38