Finding the Fourth Proportional to 55,719.31, 83,581.76 and 18,276.07

Step by Step Solution

1. Step 1: Write the proportion equation
   55,719.31 : 83,581.76 = 18,276.07 : x
2. Step 2: Convert to fraction form
   55,719.31/83,581.76 = 18,276.07/x
3. Step 3: Cross multiply
   55,719.31x = 83,581.76 × 18,276.07
4. Step 4: Simplify right side
   55,719.31x = 1,527,546,005.10
5. Step 5: Solve for x
   x = 1,527,546,005.10/55,719.31
6. Step 6: Final answer
   x = 27,415.02