Finding the Fourth Proportional to 136,435.52, 204,680.96 and 42,919.52

Step by Step Solution

1. Step 1: Write the proportion equation
   136,435.52 : 204,680.96 = 42,919.52 : x
2. Step 2: Convert to fraction form
   136,435.52/204,680.96 = 42,919.52/x
3. Step 3: Cross multiply
   136,435.52x = 204,680.96 × 42,919.52
4. Step 4: Simplify right side
   136,435.52x = 8,784,808,556.34
5. Step 5: Solve for x
   x = 8,784,808,556.34/136,435.52
6. Step 6: Final answer
   x = 64,387.99