Finding the Fourth Proportional to 9,938.90, 14,910.15 and 4,996.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.90 : 14,910.15 = 4,996.10 : x
2. Step 2: Convert to fraction form
   9,938.90/14,910.15 = 4,996.10/x
3. Step 3: Cross multiply
   9,938.90x = 14,910.15 × 4,996.10
4. Step 4: Simplify right side
   9,938.90x = 74,492,600.42
5. Step 5: Solve for x
   x = 74,492,600.42/9,938.90
6. Step 6: Final answer
   x = 7,495.05