Finding the Fourth Proportional to 12,700.52, 19,041.55 and 5,307.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,700.52 : 19,041.55 = 5,307.09 : x
2. Step 2: Convert to fraction form
   12,700.52/19,041.55 = 5,307.09/x
3. Step 3: Cross multiply
   12,700.52x = 19,041.55 × 5,307.09
4. Step 4: Simplify right side
   12,700.52x = 101,055,219.59
5. Step 5: Solve for x
   x = 101,055,219.59/12,700.52
6. Step 6: Final answer
   x = 7,956.78