Finding the Fourth Proportional to 116,338,515.18, 160,547,111.79 and 64,128,422.73

Step by Step Solution

1. Step 1: Write the proportion equation
   116,338,515.18 : 160,547,111.79 = 64,128,422.73 : x
2. Step 2: Convert to fraction form
   116,338,515.18/160,547,111.79 = 64,128,422.73/x
3. Step 3: Cross multiply
   116,338,515.18x = 160,547,111.79 × 64,128,422.73
4. Step 4: Simplify right side
   116,338,515.18x = 10,295,633,052,949,686
5. Step 5: Solve for x
   x = 10,295,633,052,949,686/116,338,515.18
6. Step 6: Final answer
   x = 88,497,201.78