Finding the Fourth Proportional to 55,068.32, 82,602.56 and 13,515.32

Step by Step Solution

1. Step 1: Write the proportion equation
   55,068.32 : 82,602.56 = 13,515.32 : x
2. Step 2: Convert to fraction form
   55,068.32/82,602.56 = 13,515.32/x
3. Step 3: Cross multiply
   55,068.32x = 82,602.56 × 13,515.32
4. Step 4: Simplify right side
   55,068.32x = 1,116,400,271.51
5. Step 5: Solve for x
   x = 1,116,400,271.51/55,068.32
6. Step 6: Final answer
   x = 20,273.00