Finding the Fourth Proportional to 62,772.57, 86,589.41 and 42,389.73

Step by Step Solution

1. Step 1: Write the proportion equation
   62,772.57 : 86,589.41 = 42,389.73 : x
2. Step 2: Convert to fraction form
   62,772.57/86,589.41 = 42,389.73/x
3. Step 3: Cross multiply
   62,772.57x = 86,589.41 × 42,389.73
4. Step 4: Simplify right side
   62,772.57x = 3,670,501,498.81
5. Step 5: Solve for x
   x = 3,670,501,498.81/62,772.57
6. Step 6: Final answer
   x = 58,473.02