Finding the Fourth Proportional to 139,856.35, 193,002.01 and 79,426.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,856.35 : 193,002.01 = 79,426.98 : x
2. Step 2: Convert to fraction form
   139,856.35/193,002.01 = 79,426.98/x
3. Step 3: Cross multiply
   139,856.35x = 193,002.01 × 79,426.98
4. Step 4: Simplify right side
   139,856.35x = 15,329,566,788.23
5. Step 5: Solve for x
   x = 15,329,566,788.23/139,856.35
6. Step 6: Final answer
   x = 109,609.38