Finding the Fourth Proportional to 12,801,079.35, 19,201,638.49 and 5,228,045.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801,079.35 : 19,201,638.49 = 5,228,045.10 : x
2. Step 2: Convert to fraction form
   12,801,079.35/19,201,638.49 = 5,228,045.10/x
3. Step 3: Cross multiply
   12,801,079.35x = 19,201,638.49 × 5,228,045.10
4. Step 4: Simplify right side
   12,801,079.35x = 100,387,032,006,545.78
5. Step 5: Solve for x
   x = 100,387,032,006,545.78/12,801,079.35
6. Step 6: Final answer
   x = 7,842,075.60