Finding the Fourth Proportional to 136,123.48, 204,185.20 and 42,636.52

Step by Step Solution

1. Step 1: Write the proportion equation
   136,123.48 : 204,185.20 = 42,636.52 : x
2. Step 2: Convert to fraction form
   136,123.48/204,185.20 = 42,636.52/x
3. Step 3: Cross multiply
   136,123.48x = 204,185.20 × 42,636.52
4. Step 4: Simplify right side
   136,123.48x = 8,705,746,363.50
5. Step 5: Solve for x
   x = 8,705,746,363.50/136,123.48
6. Step 6: Final answer
   x = 63,954.77