Finding the Fourth Proportional to 64,961.88, 89,645.61 and 36,667.32

Step by Step Solution

1. Step 1: Write the proportion equation
   64,961.88 : 89,645.61 = 36,667.32 : x
2. Step 2: Convert to fraction form
   64,961.88/89,645.61 = 36,667.32/x
3. Step 3: Cross multiply
   64,961.88x = 89,645.61 × 36,667.32
4. Step 4: Simplify right side
   64,961.88x = 3,287,064,268.47
5. Step 5: Solve for x
   x = 3,287,064,268.47/64,961.88
6. Step 6: Final answer
   x = 50,599.89