Finding the Fourth Proportional to 9,314.88, 12,860.01 and 5,780.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.88 : 12,860.01 = 5,780.04 : x
2. Step 2: Convert to fraction form
   9,314.88/12,860.01 = 5,780.04/x
3. Step 3: Cross multiply
   9,314.88x = 12,860.01 × 5,780.04
4. Step 4: Simplify right side
   9,314.88x = 74,331,372.20
5. Step 5: Solve for x
   x = 74,331,372.20/9,314.88
6. Step 6: Final answer
   x = 7,979.85