Finding the Fourth Proportional to 76,607.43, 105,705.39 and 42,611.43

Step by Step Solution

1. Step 1: Write the proportion equation
   76,607.43 : 105,705.39 = 42,611.43 : x
2. Step 2: Convert to fraction form
   76,607.43/105,705.39 = 42,611.43/x
3. Step 3: Cross multiply
   76,607.43x = 105,705.39 × 42,611.43
4. Step 4: Simplify right side
   76,607.43x = 4,504,257,826.61
5. Step 5: Solve for x
   x = 4,504,257,826.61/76,607.43
6. Step 6: Final answer
   x = 58,796.62