Finding the Fourth Proportional to 58,357.59, 80,570.72 and 47,628.09

Step by Step Solution

1. Step 1: Write the proportion equation
   58,357.59 : 80,570.72 = 47,628.09 : x
2. Step 2: Convert to fraction form
   58,357.59/80,570.72 = 47,628.09/x
3. Step 3: Cross multiply
   58,357.59x = 80,570.72 × 47,628.09
4. Step 4: Simplify right side
   58,357.59x = 3,837,429,686.59
5. Step 5: Solve for x
   x = 3,837,429,686.59/58,357.59
6. Step 6: Final answer
   x = 65,757.17