Finding the Fourth Proportional to 329,027,145.39, 490,599,127.89 and 319,987,333.98

Step by Step Solution

1. Step 1: Write the proportion equation
   329,027,145.39 : 490,599,127.89 = 319,987,333.98 : x
2. Step 2: Convert to fraction form
   329,027,145.39/490,599,127.89 = 319,987,333.98/x
3. Step 3: Cross multiply
   329,027,145.39x = 490,599,127.89 × 319,987,333.98
4. Step 4: Simplify right side
   329,027,145.39x = 156,985,506,986,434,176
5. Step 5: Solve for x
   x = 156,985,506,986,434,176/329,027,145.39
6. Step 6: Final answer
   x = 477,120,229.09