Finding the Fourth Proportional to 12,948,488.24, 17,868,914.76 and 7,147,271.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,488.24 : 17,868,914.76 = 7,147,271.48 : x
2. Step 2: Convert to fraction form
   12,948,488.24/17,868,914.76 = 7,147,271.48/x
3. Step 3: Cross multiply
   12,948,488.24x = 17,868,914.76 × 7,147,271.48
4. Step 4: Simplify right side
   12,948,488.24x = 127,713,984,842,699.06
5. Step 5: Solve for x
   x = 127,713,984,842,699.06/12,948,488.24
6. Step 6: Final answer
   x = 9,863,235.19