Finding the Fourth Proportional to 55,866.33, 83,781.50 and 18,417.69

Step by Step Solution

1. Step 1: Write the proportion equation
   55,866.33 : 83,781.50 = 18,417.69 : x
2. Step 2: Convert to fraction form
   55,866.33/83,781.50 = 18,417.69/x
3. Step 3: Cross multiply
   55,866.33x = 83,781.50 × 18,417.69
4. Step 4: Simplify right side
   55,866.33x = 1,543,061,602.65
5. Step 5: Solve for x
   x = 1,543,061,602.65/55,866.33
6. Step 6: Final answer
   x = 27,620.60