Finding the Fourth Proportional to 12,901.50, 17,806.59 and 7,312.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.50 : 17,806.59 = 7,312.62 : x
2. Step 2: Convert to fraction form
   12,901.50/17,806.59 = 7,312.62/x
3. Step 3: Cross multiply
   12,901.50x = 17,806.59 × 7,312.62
4. Step 4: Simplify right side
   12,901.50x = 130,212,826.17
5. Step 5: Solve for x
   x = 130,212,826.17/12,901.50
6. Step 6: Final answer
   x = 10,092.84