Finding the Fourth Proportional to 139,875.60, 209,650.68 and 79,946.04

Step by Step Solution

1. Step 1: Write the proportion equation
   139,875.60 : 209,650.68 = 79,946.04 : x
2. Step 2: Convert to fraction form
   139,875.60/209,650.68 = 79,946.04/x
3. Step 3: Cross multiply
   139,875.60x = 209,650.68 × 79,946.04
4. Step 4: Simplify right side
   139,875.60x = 16,760,741,649.31
5. Step 5: Solve for x
   x = 16,760,741,649.31/139,875.60
6. Step 6: Final answer
   x = 119,826.06