Finding the Fourth Proportional to 64,669.59, 89,242.59 and 35,988.45

Step by Step Solution

1. Step 1: Write the proportion equation
   64,669.59 : 89,242.59 = 35,988.45 : x
2. Step 2: Convert to fraction form
   64,669.59/89,242.59 = 35,988.45/x
3. Step 3: Cross multiply
   64,669.59x = 89,242.59 × 35,988.45
4. Step 4: Simplify right side
   64,669.59x = 3,211,702,486.72
5. Step 5: Solve for x
   x = 3,211,702,486.72/64,669.59
6. Step 6: Final answer
   x = 49,663.26