Finding the Fourth Proportional to 52,905.69, 79,169.07 and 45,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,905.69 : 79,169.07 = 45,814.50 : x
2. Step 2: Convert to fraction form
   52,905.69/79,169.07 = 45,814.50/x
3. Step 3: Cross multiply
   52,905.69x = 79,169.07 × 45,814.50
4. Step 4: Simplify right side
   52,905.69x = 3,627,091,357.52
5. Step 5: Solve for x
   x = 3,627,091,357.52/52,905.69
6. Step 6: Final answer
   x = 68,557.68