Finding the Fourth Proportional to 52,317.34, 78,475.33 and 12,874.79

Step by Step Solution

1. Step 1: Write the proportion equation
   52,317.34 : 78,475.33 = 12,874.79 : x
2. Step 2: Convert to fraction form
   52,317.34/78,475.33 = 12,874.79/x
3. Step 3: Cross multiply
   52,317.34x = 78,475.33 × 12,874.79
4. Step 4: Simplify right side
   52,317.34x = 1,010,353,393.93
5. Step 5: Solve for x
   x = 1,010,353,393.93/52,317.34
6. Step 6: Final answer
   x = 19,312.02