Finding the Fourth Proportional to 136,152.46, 204,228.78 and 42,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,152.46 : 204,228.78 = 42,665.50 : x
2. Step 2: Convert to fraction form
   136,152.46/204,228.78 = 42,665.50/x
3. Step 3: Cross multiply
   136,152.46x = 204,228.78 × 42,665.50
4. Step 4: Simplify right side
   136,152.46x = 8,713,523,013.09
5. Step 5: Solve for x
   x = 8,713,523,013.09/136,152.46
6. Step 6: Final answer
   x = 63,998.28