Finding the Fourth Proportional to 12,945,392.58, 19,421,250.42 and 4,309,476.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945,392.58 : 19,421,250.42 = 4,309,476.34 : x
2. Step 2: Convert to fraction form
   12,945,392.58/19,421,250.42 = 4,309,476.34/x
3. Step 3: Cross multiply
   12,945,392.58x = 19,421,250.42 × 4,309,476.34
4. Step 4: Simplify right side
   12,945,392.58x = 83,695,419,178,205.06
5. Step 5: Solve for x
   x = 83,695,419,178,205.06/12,945,392.58
6. Step 6: Final answer
   x = 6,465,266.98