Finding the Fourth Proportional to 9,347.34, 12,890.94 and 7,354.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,347.34 : 12,890.94 = 7,354.32 : x
2. Step 2: Convert to fraction form
   9,347.34/12,890.94 = 7,354.32/x
3. Step 3: Cross multiply
   9,347.34x = 12,890.94 × 7,354.32
4. Step 4: Simplify right side
   9,347.34x = 94,804,097.86
5. Step 5: Solve for x
   x = 94,804,097.86/9,347.34
6. Step 6: Final answer
   x = 10,142.36