Finding the Fourth Proportional to 139,794.95, 192,890.53 and 88,815.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,794.95 : 192,890.53 = 88,815.98 : x
2. Step 2: Convert to fraction form
   139,794.95/192,890.53 = 88,815.98/x
3. Step 3: Cross multiply
   139,794.95x = 192,890.53 × 88,815.98
4. Step 4: Simplify right side
   139,794.95x = 17,131,761,454.67
5. Step 5: Solve for x
   x = 17,131,761,454.67/139,794.95
6. Step 6: Final answer
   x = 122,549.22