Finding the Fourth Proportional to 21,920,978.84, 30,251,008.24 and 12,132,098.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,920,978.84 : 30,251,008.24 = 12,132,098.06 : x
2. Step 2: Convert to fraction form
   21,920,978.84/30,251,008.24 = 12,132,098.06/x
3. Step 3: Cross multiply
   21,920,978.84x = 30,251,008.24 × 12,132,098.06
4. Step 4: Simplify right side
   21,920,978.84x = 367,008,198,199,962.75
5. Step 5: Solve for x
   x = 367,008,198,199,962.75/21,920,978.84
6. Step 6: Final answer
   x = 16,742,327.11