Finding the Fourth Proportional to 13,899,308.58, 19,181,033.01 and 7,787,780.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,899,308.58 : 19,181,033.01 = 7,787,780.82 : x
2. Step 2: Convert to fraction form
   13,899,308.58/19,181,033.01 = 7,787,780.82/x
3. Step 3: Cross multiply
   13,899,308.58x = 19,181,033.01 × 7,787,780.82
4. Step 4: Simplify right side
   13,899,308.58x = 149,377,680,983,064.88
5. Step 5: Solve for x
   x = 149,377,680,983,064.88/13,899,308.58
6. Step 6: Final answer
   x = 10,747,130.34