Finding the Fourth Proportional to 62,983.68, 86,917.38 and 34,689

Step by Step Solution

1. Step 1: Write the proportion equation
   62,983.68 : 86,917.38 = 34,689 : x
2. Step 2: Convert to fraction form
   62,983.68/86,917.38 = 34,689/x
3. Step 3: Cross multiply
   62,983.68x = 86,917.38 × 34,689
4. Step 4: Simplify right side
   62,983.68x = 3,015,076,994.82
5. Step 5: Solve for x
   x = 3,015,076,994.82/62,983.68
6. Step 6: Final answer
   x = 47,870.77