Finding the Fourth Proportional to 139,820.40, 192,925.59 and 82,477.74

Step by Step Solution

1. Step 1: Write the proportion equation
   139,820.40 : 192,925.59 = 82,477.74 : x
2. Step 2: Convert to fraction form
   139,820.40/192,925.59 = 82,477.74/x
3. Step 3: Cross multiply
   139,820.40x = 192,925.59 × 82,477.74
4. Step 4: Simplify right side
   139,820.40x = 15,912,066,651.37
5. Step 5: Solve for x
   x = 15,912,066,651.37/139,820.40
6. Step 6: Final answer
   x = 113,803.61