Finding the Fourth Proportional to 34,890.32, 52,339.98 and 12,700.28

Step by Step Solution

1. Step 1: Write the proportion equation
   34,890.32 : 52,339.98 = 12,700.28 : x
2. Step 2: Convert to fraction form
   34,890.32/52,339.98 = 12,700.28/x
3. Step 3: Cross multiply
   34,890.32x = 52,339.98 × 12,700.28
4. Step 4: Simplify right side
   34,890.32x = 664,732,401.19
5. Step 5: Solve for x
   x = 664,732,401.19/34,890.32
6. Step 6: Final answer
   x = 19,052.06