Finding the Fourth Proportional to 139,499.46, 192,243.80 and 101,192.94

Step by Step Solution

1. Step 1: Write the proportion equation
   139,499.46 : 192,243.80 = 101,192.94 : x
2. Step 2: Convert to fraction form
   139,499.46/192,243.80 = 101,192.94/x
3. Step 3: Cross multiply
   139,499.46x = 192,243.80 × 101,192.94
4. Step 4: Simplify right side
   139,499.46x = 19,453,714,812.81
5. Step 5: Solve for x
   x = 19,453,714,812.81/139,499.46
6. Step 6: Final answer
   x = 139,453.69