Finding the Fourth Proportional to 139,984.88, 193,118.40 and 88,970.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,984.88 : 193,118.40 = 88,970.32 : x
2. Step 2: Convert to fraction form
   139,984.88/193,118.40 = 88,970.32/x
3. Step 3: Cross multiply
   139,984.88x = 193,118.40 × 88,970.32
4. Step 4: Simplify right side
   139,984.88x = 17,181,805,845.89
5. Step 5: Solve for x
   x = 17,181,805,845.89/139,984.88
6. Step 6: Final answer
   x = 122,740.44