Finding the Fourth Proportional to 12,739,790.50, 17,580,910.89 and 7,016,654.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,739,790.50 : 17,580,910.89 = 7,016,654.50 : x
2. Step 2: Convert to fraction form
   12,739,790.50/17,580,910.89 = 7,016,654.50/x
3. Step 3: Cross multiply
   12,739,790.50x = 17,580,910.89 × 7,016,654.50
4. Step 4: Simplify right side
   12,739,790.50x = 123,359,177,510,417.52
5. Step 5: Solve for x
   x = 123,359,177,510,417.52/12,739,790.50
6. Step 6: Final answer
   x = 9,682,983.21