Finding the Fourth Proportional to 55,458.69, 83,199.69 and 18,015.81

Step by Step Solution

1. Step 1: Write the proportion equation
   55,458.69 : 83,199.69 = 18,015.81 : x
2. Step 2: Convert to fraction form
   55,458.69/83,199.69 = 18,015.81/x
3. Step 3: Cross multiply
   55,458.69x = 83,199.69 × 18,015.81
4. Step 4: Simplify right side
   55,458.69x = 1,498,909,807.10
5. Step 5: Solve for x
   x = 1,498,909,807.10/55,458.69
6. Step 6: Final answer
   x = 27,027.50