Finding the Fourth Proportional to 12,998.51, 19,499.30 and 4,562.43

Step by Step Solution

1. Step 1: Write the proportion equation
   12,998.51 : 19,499.30 = 4,562.43 : x
2. Step 2: Convert to fraction form
   12,998.51/19,499.30 = 4,562.43/x
3. Step 3: Cross multiply
   12,998.51x = 19,499.30 × 4,562.43
4. Step 4: Simplify right side
   12,998.51x = 88,964,112.47
5. Step 5: Solve for x
   x = 88,964,112.47/12,998.51
6. Step 6: Final answer
   x = 6,844.18