Finding the Fourth Proportional to 139,770.06, 192,886.14 and 76,111.32

Step by Step Solution

1. Step 1: Write the proportion equation
   139,770.06 : 192,886.14 = 76,111.32 : x
2. Step 2: Convert to fraction form
   139,770.06/192,886.14 = 76,111.32/x
3. Step 3: Cross multiply
   139,770.06x = 192,886.14 × 76,111.32
4. Step 4: Simplify right side
   139,770.06x = 14,680,818,725.10
5. Step 5: Solve for x
   x = 14,680,818,725.10/139,770.06
6. Step 6: Final answer
   x = 105,035.50