Finding the Fourth Proportional to 76,481.95, 105,546.43 and 42,493.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,481.95 : 105,546.43 = 42,493.54 : x
2. Step 2: Convert to fraction form
   76,481.95/105,546.43 = 42,493.54/x
3. Step 3: Cross multiply
   76,481.95x = 105,546.43 × 42,493.54
4. Step 4: Simplify right side
   76,481.95x = 4,485,041,445.06
5. Step 5: Solve for x
   x = 4,485,041,445.06/76,481.95
6. Step 6: Final answer
   x = 58,641.83