Finding the Fourth Proportional to 139,507.50, 192,178.69 and 101,154.36

Step by Step Solution

1. Step 1: Write the proportion equation
   139,507.50 : 192,178.69 = 101,154.36 : x
2. Step 2: Convert to fraction form
   139,507.50/192,178.69 = 101,154.36/x
3. Step 3: Cross multiply
   139,507.50x = 192,178.69 × 101,154.36
4. Step 4: Simplify right side
   139,507.50x = 19,439,712,392.59
5. Step 5: Solve for x
   x = 19,439,712,392.59/139,507.50
6. Step 6: Final answer
   x = 139,345.29