Finding the Fourth Proportional to 55,159.82, 82,742.86 and 15,720.01

Step by Step Solution

1. Step 1: Write the proportion equation
   55,159.82 : 82,742.86 = 15,720.01 : x
2. Step 2: Convert to fraction form
   55,159.82/82,742.86 = 15,720.01/x
3. Step 3: Cross multiply
   55,159.82x = 82,742.86 × 15,720.01
4. Step 4: Simplify right side
   55,159.82x = 1,300,718,709.71
5. Step 5: Solve for x
   x = 1,300,718,709.71/55,159.82
6. Step 6: Final answer
   x = 23,580.91