Finding the Fourth Proportional to 19,967,279.33, 29,960,404.13 and 13,828,707.59

Step by Step Solution

1. Step 1: Write the proportion equation
   19,967,279.33 : 29,960,404.13 = 13,828,707.59 : x
2. Step 2: Convert to fraction form
   19,967,279.33/29,960,404.13 = 13,828,707.59/x
3. Step 3: Cross multiply
   19,967,279.33x = 29,960,404.13 × 13,828,707.59
4. Step 4: Simplify right side
   19,967,279.33x = 414,313,667,847,953.81
5. Step 5: Solve for x
   x = 414,313,667,847,953.81/19,967,279.33
6. Step 6: Final answer
   x = 20,749,630.49