Finding the Fourth Proportional to 55,411.02, 83,115.99 and 13,858.02

Step by Step Solution

1. Step 1: Write the proportion equation
   55,411.02 : 83,115.99 = 13,858.02 : x
2. Step 2: Convert to fraction form
   55,411.02/83,115.99 = 13,858.02/x
3. Step 3: Cross multiply
   55,411.02x = 83,115.99 × 13,858.02
4. Step 4: Simplify right side
   55,411.02x = 1,151,823,051.74
5. Step 5: Solve for x
   x = 1,151,823,051.74/55,411.02
6. Step 6: Final answer
   x = 20,786.89