Finding the Fourth Proportional to 12,946.38, 19,415.79 and 7,398.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,946.38 : 19,415.79 = 7,398.69 : x
2. Step 2: Convert to fraction form
   12,946.38/19,415.79 = 7,398.69/x
3. Step 3: Cross multiply
   12,946.38x = 19,415.79 × 7,398.69
4. Step 4: Simplify right side
   12,946.38x = 143,651,411.32
5. Step 5: Solve for x
   x = 143,651,411.32/12,946.38
6. Step 6: Final answer
   x = 11,095.87