Finding the Fourth Proportional to 12,888,558.98, 17,786,189.72 and 7,383,715.95

Step by Step Solution

1. Step 1: Write the proportion equation
   12,888,558.98 : 17,786,189.72 = 7,383,715.95 : x
2. Step 2: Convert to fraction form
   12,888,558.98/17,786,189.72 = 7,383,715.95/x
3. Step 3: Cross multiply
   12,888,558.98x = 17,786,189.72 × 7,383,715.95
4. Step 4: Simplify right side
   12,888,558.98x = 131,328,172,810,447.55
5. Step 5: Solve for x
   x = 131,328,172,810,447.55/12,888,558.98
6. Step 6: Final answer
   x = 10,189,515.60