Finding the Fourth Proportional to 25,378,865.48, 35,022,878.78 and 13,776,436.82

Step by Step Solution

1. Step 1: Write the proportion equation
   25,378,865.48 : 35,022,878.78 = 13,776,436.82 : x
2. Step 2: Convert to fraction form
   25,378,865.48/35,022,878.78 = 13,776,436.82/x
3. Step 3: Cross multiply
   25,378,865.48x = 35,022,878.78 × 13,776,436.82
4. Step 4: Simplify right side
   25,378,865.48x = 482,490,476,767,188.69
5. Step 5: Solve for x
   x = 482,490,476,767,188.69/25,378,865.48
6. Step 6: Final answer
   x = 19,011,506.92