Finding the Fourth Proportional to 76,598.78, 105,704.78 and 42,606.54

Step by Step Solution

1. Step 1: Write the proportion equation
   76,598.78 : 105,704.78 = 42,606.54 : x
2. Step 2: Convert to fraction form
   76,598.78/105,704.78 = 42,606.54/x
3. Step 3: Cross multiply
   76,598.78x = 105,704.78 × 42,606.54
4. Step 4: Simplify right side
   76,598.78x = 4,503,714,724.23
5. Step 5: Solve for x
   x = 4,503,714,724.23/76,598.78
6. Step 6: Final answer
   x = 58,796.17