Finding the Fourth Proportional to 9,938.04, 14,878.71 and 7,714.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938.04 : 14,878.71 = 7,714.59 : x
2. Step 2: Convert to fraction form
   9,938.04/14,878.71 = 7,714.59/x
3. Step 3: Cross multiply
   9,938.04x = 14,878.71 × 7,714.59
4. Step 4: Simplify right side
   9,938.04x = 114,783,147.38
5. Step 5: Solve for x
   x = 114,783,147.38/9,938.04
6. Step 6: Final answer
   x = 11,549.88