Finding the Fourth Proportional to 139,379.34, 192,501.59 and 93,979.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,379.34 : 192,501.59 = 93,979.05 : x
2. Step 2: Convert to fraction form
   139,379.34/192,501.59 = 93,979.05/x
3. Step 3: Cross multiply
   139,379.34x = 192,501.59 × 93,979.05
4. Step 4: Simplify right side
   139,379.34x = 18,091,116,551.69
5. Step 5: Solve for x
   x = 18,091,116,551.69/139,379.34
6. Step 6: Final answer
   x = 129,797.69