Finding the Fourth Proportional to 12,933.47, 17,850.12 and 7,900.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,933.47 : 17,850.12 = 7,900.59 : x
2. Step 2: Convert to fraction form
   12,933.47/17,850.12 = 7,900.59/x
3. Step 3: Cross multiply
   12,933.47x = 17,850.12 × 7,900.59
4. Step 4: Simplify right side
   12,933.47x = 141,026,460.92
5. Step 5: Solve for x
   x = 141,026,460.92/12,933.47
6. Step 6: Final answer
   x = 10,903.99