Finding the Fourth Proportional to 12,866.05, 19,300.47 and 4,098.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,866.05 : 19,300.47 = 4,098.93 : x
2. Step 2: Convert to fraction form
   12,866.05/19,300.47 = 4,098.93/x
3. Step 3: Cross multiply
   12,866.05x = 19,300.47 × 4,098.93
4. Step 4: Simplify right side
   12,866.05x = 79,111,275.50
5. Step 5: Solve for x
   x = 79,111,275.50/12,866.05
6. Step 6: Final answer
   x = 6,148.84