Finding the Fourth Proportional to 76,598.31, 105,704.16 and 42,605.64

Step by Step Solution

1. Step 1: Write the proportion equation
   76,598.31 : 105,704.16 = 42,605.64 : x
2. Step 2: Convert to fraction form
   76,598.31/105,704.16 = 42,605.64/x
3. Step 3: Cross multiply
   76,598.31x = 105,704.16 × 42,605.64
4. Step 4: Simplify right side
   76,598.31x = 4,503,593,387.46
5. Step 5: Solve for x
   x = 4,503,593,387.46/76,598.31
6. Step 6: Final answer
   x = 58,794.94