Finding the Fourth Proportional to 21,787,118.27, 32,650,090.72 and 17,218,081.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,787,118.27 : 32,650,090.72 = 17,218,081.07 : x
2. Step 2: Convert to fraction form
   21,787,118.27/32,650,090.72 = 17,218,081.07/x
3. Step 3: Cross multiply
   21,787,118.27x = 32,650,090.72 × 17,218,081.07
4. Step 4: Simplify right side
   21,787,118.27x = 562,171,908,959,814.69
5. Step 5: Solve for x
   x = 562,171,908,959,814.69/21,787,118.27
6. Step 6: Final answer
   x = 25,802,949.34