Finding the Fourth Proportional to 12,612,071.20, 17,404,674.96 and 7,179,556

Step by Step Solution

1. Step 1: Write the proportion equation
   12,612,071.20 : 17,404,674.96 = 7,179,556 : x
2. Step 2: Convert to fraction form
   12,612,071.20/17,404,674.96 = 7,179,556/x
3. Step 3: Cross multiply
   12,612,071.20x = 17,404,674.96 × 7,179,556
4. Step 4: Simplify right side
   12,612,071.20x = 124,957,838,537,117.77
5. Step 5: Solve for x
   x = 124,957,838,537,117.77/12,612,071.20
6. Step 6: Final answer
   x = 9,907,796.79