Finding the Fourth Proportional to 263,642,891.58, 395,187,507.81 and 88,705,196.10

Step by Step Solution

1. Step 1: Write the proportion equation
   263,642,891.58 : 395,187,507.81 = 88,705,196.10 : x
2. Step 2: Convert to fraction form
   263,642,891.58/395,187,507.81 = 88,705,196.10/x
3. Step 3: Cross multiply
   263,642,891.58x = 395,187,507.81 × 88,705,196.10
4. Step 4: Simplify right side
   263,642,891.58x = 35,055,185,376,556,328
5. Step 5: Solve for x
   x = 35,055,185,376,556,328/263,642,891.58
6. Step 6: Final answer
   x = 132,964,652.17