Finding the Fourth Proportional to 89,382.96, 134,067.46 and 42,008.40

Step by Step Solution

1. Step 1: Write the proportion equation
   89,382.96 : 134,067.46 = 42,008.40 : x
2. Step 2: Convert to fraction form
   89,382.96/134,067.46 = 42,008.40/x
3. Step 3: Cross multiply
   89,382.96x = 134,067.46 × 42,008.40
4. Step 4: Simplify right side
   89,382.96x = 5,631,959,486.66
5. Step 5: Solve for x
   x = 5,631,959,486.66/89,382.96
6. Step 6: Final answer
   x = 63,009.32