Finding the Fourth Proportional to 136,067.40, 204,071.94 and 42,561

Step by Step Solution

1. Step 1: Write the proportion equation
   136,067.40 : 204,071.94 = 42,561 : x
2. Step 2: Convert to fraction form
   136,067.40/204,071.94 = 42,561/x
3. Step 3: Cross multiply
   136,067.40x = 204,071.94 × 42,561
4. Step 4: Simplify right side
   136,067.40x = 8,685,505,838.34
5. Step 5: Solve for x
   x = 8,685,505,838.34/136,067.40
6. Step 6: Final answer
   x = 63,832.38