Finding the Fourth Proportional to 12,938,828.30, 19,374,028.05 and 10,368,082.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,938,828.30 : 19,374,028.05 = 10,368,082.70 : x
2. Step 2: Convert to fraction form
   12,938,828.30/19,374,028.05 = 10,368,082.70/x
3. Step 3: Cross multiply
   12,938,828.30x = 19,374,028.05 × 10,368,082.70
4. Step 4: Simplify right side
   12,938,828.30x = 200,871,525,054,519.72
5. Step 5: Solve for x
   x = 200,871,525,054,519.72/12,938,828.30
6. Step 6: Final answer
   x = 15,524,707.52