Finding the Fourth Proportional to 52,617.42, 78,864.84 and 19,312.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,617.42 : 78,864.84 = 19,312.38 : x
2. Step 2: Convert to fraction form
   52,617.42/78,864.84 = 19,312.38/x
3. Step 3: Cross multiply
   52,617.42x = 78,864.84 × 19,312.38
4. Step 4: Simplify right side
   52,617.42x = 1,523,067,758.72
5. Step 5: Solve for x
   x = 1,523,067,758.72/52,617.42
6. Step 6: Final answer
   x = 28,946.07