Finding the Fourth Proportional to 139,919.08, 193,162.16 and 112,396.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,919.08 : 193,162.16 = 112,396.92 : x
2. Step 2: Convert to fraction form
   139,919.08/193,162.16 = 112,396.92/x
3. Step 3: Cross multiply
   139,919.08x = 193,162.16 × 112,396.92
4. Step 4: Simplify right side
   139,919.08x = 21,710,831,844.55
5. Step 5: Solve for x
   x = 21,710,831,844.55/139,919.08
6. Step 6: Final answer
   x = 155,167.06