Finding the Fourth Proportional to 62,886.71, 86,739.69 and 42,708.53

Step by Step Solution

1. Step 1: Write the proportion equation
   62,886.71 : 86,739.69 = 42,708.53 : x
2. Step 2: Convert to fraction form
   62,886.71/86,739.69 = 42,708.53/x
3. Step 3: Cross multiply
   62,886.71x = 86,739.69 × 42,708.53
4. Step 4: Simplify right side
   62,886.71x = 3,704,525,029.56
5. Step 5: Solve for x
   x = 3,704,525,029.56/62,886.71
6. Step 6: Final answer
   x = 58,907.91