Finding the Fourth Proportional to 78,677.24, 108,614.79 and 53,317.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,677.24 : 108,614.79 = 53,317.62 : x
2. Step 2: Convert to fraction form
   78,677.24/108,614.79 = 53,317.62/x
3. Step 3: Cross multiply
   78,677.24x = 108,614.79 × 53,317.62
4. Step 4: Simplify right side
   78,677.24x = 5,791,082,099.60
5. Step 5: Solve for x
   x = 5,791,082,099.60/78,677.24
6. Step 6: Final answer
   x = 73,605.56