Finding the Fourth Proportional to 12,801,089.21, 19,201,653.25 and 5,228,054.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,801,089.21 : 19,201,653.25 = 5,228,054.96 : x
2. Step 2: Convert to fraction form
   12,801,089.21/19,201,653.25 = 5,228,054.96/x
3. Step 3: Cross multiply
   12,801,089.21x = 19,201,653.25 × 5,228,054.96
4. Step 4: Simplify right side
   12,801,089.21x = 100,387,298,404,784.20
5. Step 5: Solve for x
   x = 100,387,298,404,784.20/12,801,089.21
6. Step 6: Final answer
   x = 7,842,090.37