Finding the Fourth Proportional to 10,931.58, 16,402.73 and 4,689.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931.58 : 16,402.73 = 4,689.75 : x
2. Step 2: Convert to fraction form
   10,931.58/16,402.73 = 4,689.75/x
3. Step 3: Cross multiply
   10,931.58x = 16,402.73 × 4,689.75
4. Step 4: Simplify right side
   10,931.58x = 76,924,662.00
5. Step 5: Solve for x
   x = 76,924,662.00/10,931.58
6. Step 6: Final answer
   x = 7,036.92