Finding the Fourth Proportional to 76,323.54, 105,215.89 and 53,593.30

Step by Step Solution

1. Step 1: Write the proportion equation
   76,323.54 : 105,215.89 = 53,593.30 : x
2. Step 2: Convert to fraction form
   76,323.54/105,215.89 = 53,593.30/x
3. Step 3: Cross multiply
   76,323.54x = 105,215.89 × 53,593.30
4. Step 4: Simplify right side
   76,323.54x = 5,638,866,757.54
5. Step 5: Solve for x
   x = 5,638,866,757.54/76,323.54
6. Step 6: Final answer
   x = 73,881.10