Finding the Fourth Proportional to 12,700.86, 19,048.22 and 5,301.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.86 : 19,048.22 = 5,301.31 : x
2. Step 2: Convert to fraction form
   12,700.86/19,048.22 = 5,301.31/x
3. Step 3: Cross multiply
   12,700.86x = 19,048.22 × 5,301.31
4. Step 4: Simplify right side
   12,700.86x = 100,980,492.66
5. Step 5: Solve for x
   x = 100,980,492.66/12,700.86
6. Step 6: Final answer
   x = 7,950.68