Finding the Fourth Proportional to 78,453.72, 117,668.18 and 34,068.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,453.72 : 117,668.18 = 34,068.56 : x
2. Step 2: Convert to fraction form
   78,453.72/117,668.18 = 34,068.56/x
3. Step 3: Cross multiply
   78,453.72x = 117,668.18 × 34,068.56
4. Step 4: Simplify right side
   78,453.72x = 4,008,784,691.74
5. Step 5: Solve for x
   x = 4,008,784,691.74/78,453.72
6. Step 6: Final answer
   x = 51,097.45