Finding the Fourth Proportional to 13,693,128.98, 18,897,108.33 and 7,581,557.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,693,128.98 : 18,897,108.33 = 7,581,557.42 : x
2. Step 2: Convert to fraction form
   13,693,128.98/18,897,108.33 = 7,581,557.42/x
3. Step 3: Cross multiply
   13,693,128.98x = 18,897,108.33 × 7,581,557.42
4. Step 4: Simplify right side
   13,693,128.98x = 143,269,511,875,855.28
5. Step 5: Solve for x
   x = 143,269,511,875,855.28/13,693,128.98
6. Step 6: Final answer
   x = 10,462,876.10