Finding the Fourth Proportional to 37,679, 56,528.58 and 13,055

Step by Step Solution

1. Step 1: Write the proportion equation
   37,679 : 56,528.58 = 13,055 : x
2. Step 2: Convert to fraction form
   37,679/56,528.58 = 13,055/x
3. Step 3: Cross multiply
   37,679x = 56,528.58 × 13,055
4. Step 4: Simplify right side
   37,679x = 737,980,611.90
5. Step 5: Solve for x
   x = 737,980,611.90/37,679
6. Step 6: Final answer
   x = 19,585.99