Finding the Fourth Proportional to 10,915.34, 16,372.89 and 4,670.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,915.34 : 16,372.89 = 4,670.06 : x
2. Step 2: Convert to fraction form
   10,915.34/16,372.89 = 4,670.06/x
3. Step 3: Cross multiply
   10,915.34x = 16,372.89 × 4,670.06
4. Step 4: Simplify right side
   10,915.34x = 76,462,296.81
5. Step 5: Solve for x
   x = 76,462,296.81/10,915.34
6. Step 6: Final answer
   x = 7,005.03