Finding the Fourth Proportional to 12,906,057.88, 19,358,955.58 and 3,321,399.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906,057.88 : 19,358,955.58 = 3,321,399.16 : x
2. Step 2: Convert to fraction form
   12,906,057.88/19,358,955.58 = 3,321,399.16/x
3. Step 3: Cross multiply
   12,906,057.88x = 19,358,955.58 × 3,321,399.16
4. Step 4: Simplify right side
   12,906,057.88x = 64,298,818,705,094.52
5. Step 5: Solve for x
   x = 64,298,818,705,094.52/12,906,057.88
6. Step 6: Final answer
   x = 4,982,064.96