Finding the Fourth Proportional to 123,828,896.35, 170,873,719.59 and 72,899,651.44

Step by Step Solution

1. Step 1: Write the proportion equation
   123,828,896.35 : 170,873,719.59 = 72,899,651.44 : x
2. Step 2: Convert to fraction form
   123,828,896.35/170,873,719.59 = 72,899,651.44/x
3. Step 3: Cross multiply
   123,828,896.35x = 170,873,719.59 × 72,899,651.44
4. Step 4: Simplify right side
   123,828,896.35x = 12,456,634,598,367,300
5. Step 5: Solve for x
   x = 12,456,634,598,367,300/123,828,896.35
6. Step 6: Final answer
   x = 100,595,539.21