Finding the Fourth Proportional to 160,404.77, 221,360.55 and 88,791.47

Step by Step Solution

1. Step 1: Write the proportion equation
   160,404.77 : 221,360.55 = 88,791.47 : x
2. Step 2: Convert to fraction form
   160,404.77/221,360.55 = 88,791.47/x
3. Step 3: Cross multiply
   160,404.77x = 221,360.55 × 88,791.47
4. Step 4: Simplify right side
   160,404.77x = 19,654,928,634.51
5. Step 5: Solve for x
   x = 19,654,928,634.51/160,404.77
6. Step 6: Final answer
   x = 122,533.32