Finding the Fourth Proportional to 12,977.16, 19,429.43 and 7,032.71

Step by Step Solution

1. Step 1: Write the proportion equation
   12,977.16 : 19,429.43 = 7,032.71 : x
2. Step 2: Convert to fraction form
   12,977.16/19,429.43 = 7,032.71/x
3. Step 3: Cross multiply
   12,977.16x = 19,429.43 × 7,032.71
4. Step 4: Simplify right side
   12,977.16x = 136,641,414.34
5. Step 5: Solve for x
   x = 136,641,414.34/12,977.16
6. Step 6: Final answer
   x = 10,529.38