Finding the Fourth Proportional to 1,566,725,538.37, 2,162,013,076.77 and 861,832,824.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,566,725,538.37 : 2,162,013,076.77 = 861,832,824.79 : x
2. Step 2: Convert to fraction form
   1,566,725,538.37/2,162,013,076.77 = 861,832,824.79/x
3. Step 3: Cross multiply
   1,566,725,538.37x = 2,162,013,076.77 × 861,832,824.79
4. Step 4: Simplify right side
   1,566,725,538.37x = 1,863,293,837,185,608,192
5. Step 5: Solve for x
   x = 1,863,293,837,185,608,192/1,566,725,538.37
6. Step 6: Final answer
   x = 1,189,291,800.99