Finding the Fourth Proportional to 52,284.18, 78,442.72 and 18,995.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,284.18 : 78,442.72 = 18,995.38 : x
2. Step 2: Convert to fraction form
   52,284.18/78,442.72 = 18,995.38/x
3. Step 3: Cross multiply
   52,284.18x = 78,442.72 × 18,995.38
4. Step 4: Simplify right side
   52,284.18x = 1,490,049,274.63
5. Step 5: Solve for x
   x = 1,490,049,274.63/52,284.18
6. Step 6: Final answer
   x = 28,499.05