Finding the Fourth Proportional to 62,983.32, 86,916.96 and 34,689.12

Step by Step Solution

1. Step 1: Write the proportion equation
   62,983.32 : 86,916.96 = 34,689.12 : x
2. Step 2: Convert to fraction form
   62,983.32/86,916.96 = 34,689.12/x
3. Step 3: Cross multiply
   62,983.32x = 86,916.96 × 34,689.12
4. Step 4: Simplify right side
   62,983.32x = 3,015,072,855.48
5. Step 5: Solve for x
   x = 3,015,072,855.48/62,983.32
6. Step 6: Final answer
   x = 47,870.97