Finding the Fourth Proportional to 76,530.24, 105,616.32 and 42,996.16

Step by Step Solution

1. Step 1: Write the proportion equation
   76,530.24 : 105,616.32 = 42,996.16 : x
2. Step 2: Convert to fraction form
   76,530.24/105,616.32 = 42,996.16/x
3. Step 3: Cross multiply
   76,530.24x = 105,616.32 × 42,996.16
4. Step 4: Simplify right side
   76,530.24x = 4,541,096,193.33
5. Step 5: Solve for x
   x = 4,541,096,193.33/76,530.24
6. Step 6: Final answer
   x = 59,337.28