Finding the Fourth Proportional to 76,436.02, 105,482.81 and 42,446.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,436.02 : 105,482.81 = 42,446.62 : x
2. Step 2: Convert to fraction form
   76,436.02/105,482.81 = 42,446.62/x
3. Step 3: Cross multiply
   76,436.02x = 105,482.81 × 42,446.62
4. Step 4: Simplify right side
   76,436.02x = 4,477,388,012.96
5. Step 5: Solve for x
   x = 4,477,388,012.96/76,436.02
6. Step 6: Final answer
   x = 58,576.94