Finding the Fourth Proportional to 12,994.32, 19,490.40 and 5,203.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.32 : 19,490.40 = 5,203.56 : x
2. Step 2: Convert to fraction form
   12,994.32/19,490.40 = 5,203.56/x
3. Step 3: Cross multiply
   12,994.32x = 19,490.40 × 5,203.56
4. Step 4: Simplify right side
   12,994.32x = 101,419,465.82
5. Step 5: Solve for x
   x = 101,419,465.82/12,994.32
6. Step 6: Final answer
   x = 7,804.91