Finding the Fourth Proportional to 139,733.33, 192,828.93 and 81,600.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,733.33 : 192,828.93 = 81,600.05 : x
2. Step 2: Convert to fraction form
   139,733.33/192,828.93 = 81,600.05/x
3. Step 3: Cross multiply
   139,733.33x = 192,828.93 × 81,600.05
4. Step 4: Simplify right side
   139,733.33x = 15,734,849,365.30
5. Step 5: Solve for x
   x = 15,734,849,365.30/139,733.33
6. Step 6: Final answer
   x = 112,606.28