Finding the Fourth Proportional to 21,740,947.48, 30,003,238.12 and 12,798,444.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,740,947.48 : 30,003,238.12 = 12,798,444.10 : x
2. Step 2: Convert to fraction form
   21,740,947.48/30,003,238.12 = 12,798,444.10/x
3. Step 3: Cross multiply
   21,740,947.48x = 30,003,238.12 × 12,798,444.10
4. Step 4: Simplify right side
   21,740,947.48x = 383,994,765,897,809.12
5. Step 5: Solve for x
   x = 383,994,765,897,809.12/21,740,947.48
6. Step 6: Final answer
   x = 17,662,282.95