Finding the Fourth Proportional to 12,871,617.95, 17,758,496.45 and 7,289,099.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,871,617.95 : 17,758,496.45 = 7,289,099.98 : x
2. Step 2: Convert to fraction form
   12,871,617.95/17,758,496.45 = 7,289,099.98/x
3. Step 3: Cross multiply
   12,871,617.95x = 17,758,496.45 × 7,289,099.98
4. Step 4: Simplify right side
   12,871,617.95x = 129,443,456,092,351.58
5. Step 5: Solve for x
   x = 129,443,456,092,351.58/12,871,617.95
6. Step 6: Final answer
   x = 10,056,502.34