Finding the Fourth Proportional to 160,263.50, 221,148.77 and 88,641.98

Step by Step Solution

1. Step 1: Write the proportion equation
   160,263.50 : 221,148.77 = 88,641.98 : x
2. Step 2: Convert to fraction form
   160,263.50/221,148.77 = 88,641.98/x
3. Step 3: Cross multiply
   160,263.50x = 221,148.77 × 88,641.98
4. Step 4: Simplify right side
   160,263.50x = 19,603,064,404.15
5. Step 5: Solve for x
   x = 19,603,064,404.15/160,263.50
6. Step 6: Final answer
   x = 122,317.71