Finding the Fourth Proportional to 13,200,323.76, 19,769,780.16 and 12,837,087.36

Step by Step Solution

1. Step 1: Write the proportion equation
   13,200,323.76 : 19,769,780.16 = 12,837,087.36 : x
2. Step 2: Convert to fraction form
   13,200,323.76/19,769,780.16 = 12,837,087.36/x
3. Step 3: Cross multiply
   13,200,323.76x = 19,769,780.16 × 12,837,087.36
4. Step 4: Simplify right side
   13,200,323.76x = 253,786,395,001,914.78
5. Step 5: Solve for x
   x = 253,786,395,001,914.78/13,200,323.76
6. Step 6: Final answer
   x = 19,225,770.49