Finding the Fourth Proportional to 21,608,424.84, 29,813,152.50 and 12,440,831.88

Step by Step Solution

1. Step 1: Write the proportion equation
   21,608,424.84 : 29,813,152.50 = 12,440,831.88 : x
2. Step 2: Convert to fraction form
   21,608,424.84/29,813,152.50 = 12,440,831.88/x
3. Step 3: Cross multiply
   21,608,424.84x = 29,813,152.50 × 12,440,831.88
4. Step 4: Simplify right side
   21,608,424.84x = 370,900,418,065,301.75
5. Step 5: Solve for x
   x = 370,900,418,065,301.75/21,608,424.84
6. Step 6: Final answer
   x = 17,164,620.78