Finding the Fourth Proportional to 12,799.08, 19,173.18 and 10,012.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,799.08 : 19,173.18 = 10,012.74 : x
2. Step 2: Convert to fraction form
   12,799.08/19,173.18 = 10,012.74/x
3. Step 3: Cross multiply
   12,799.08x = 19,173.18 × 10,012.74
4. Step 4: Simplify right side
   12,799.08x = 191,976,066.31
5. Step 5: Solve for x
   x = 191,976,066.31/12,799.08
6. Step 6: Final answer
   x = 14,999.21