Finding the Fourth Proportional to 1,383,142,686.72, 1,908,782,434.35 and 756,596,776.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,383,142,686.72 : 1,908,782,434.35 = 756,596,776.56 : x
2. Step 2: Convert to fraction form
   1,383,142,686.72/1,908,782,434.35 = 756,596,776.56/x
3. Step 3: Cross multiply
   1,383,142,686.72x = 1,908,782,434.35 × 756,596,776.56
4. Step 4: Simplify right side
   1,383,142,686.72x = 1,444,178,636,983,559,680
5. Step 5: Solve for x
   x = 1,444,178,636,983,559,680/1,383,142,686.72
6. Step 6: Final answer
   x = 1,044,128,455.33