Finding the Fourth Proportional to 12,739,791, 17,580,911.58 and 7,016,655

Step by Step Solution

1. Step 1: Write the proportion equation
   12,739,791 : 17,580,911.58 = 7,016,655 : x
2. Step 2: Convert to fraction form
   12,739,791/17,580,911.58 = 7,016,655/x
3. Step 3: Cross multiply
   12,739,791x = 17,580,911.58 × 7,016,655
4. Step 4: Simplify right side
   12,739,791x = 123,359,191,142,364.89
5. Step 5: Solve for x
   x = 123,359,191,142,364.89/12,739,791
6. Step 6: Final answer
   x = 9,682,983.90