Finding the Fourth Proportional to 12,925.98, 17,837.38 and 7,898.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,925.98 : 17,837.38 = 7,898.61 : x
2. Step 2: Convert to fraction form
   12,925.98/17,837.38 = 7,898.61/x
3. Step 3: Cross multiply
   12,925.98x = 17,837.38 × 7,898.61
4. Step 4: Simplify right side
   12,925.98x = 140,890,584.81
5. Step 5: Solve for x
   x = 140,890,584.81/12,925.98
6. Step 6: Final answer
   x = 10,899.80