Finding the Fourth Proportional to 139,973.82, 193,166.55 and 76,314.30

Step by Step Solution

1. Step 1: Write the proportion equation
   139,973.82 : 193,166.55 = 76,314.30 : x
2. Step 2: Convert to fraction form
   139,973.82/193,166.55 = 76,314.30/x
3. Step 3: Cross multiply
   139,973.82x = 193,166.55 × 76,314.30
4. Step 4: Simplify right side
   139,973.82x = 14,741,370,046.67
5. Step 5: Solve for x
   x = 14,741,370,046.67/139,973.82
6. Step 6: Final answer
   x = 105,315.19