Finding the Fourth Proportional to 52,523.69, 78,748.61 and 19,239.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,523.69 : 78,748.61 = 19,239.42 : x
2. Step 2: Convert to fraction form
   52,523.69/78,748.61 = 19,239.42/x
3. Step 3: Cross multiply
   52,523.69x = 78,748.61 × 19,239.42
4. Step 4: Simplify right side
   52,523.69x = 1,515,077,486.01
5. Step 5: Solve for x
   x = 1,515,077,486.01/52,523.69
6. Step 6: Final answer
   x = 28,845.61