Finding the Fourth Proportional to 139,971.93, 193,100.31 and 88,957.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,971.93 : 193,100.31 = 88,957.32 : x
2. Step 2: Convert to fraction form
   139,971.93/193,100.31 = 88,957.32/x
3. Step 3: Cross multiply
   139,971.93x = 193,100.31 × 88,957.32
4. Step 4: Simplify right side
   139,971.93x = 17,177,686,068.77
5. Step 5: Solve for x
   x = 17,177,686,068.77/139,971.93
6. Step 6: Final answer
   x = 122,722.36