Finding the Fourth Proportional to 65,139.63, 89,886.33 and 36,457.59

Step by Step Solution

1. Step 1: Write the proportion equation
   65,139.63 : 89,886.33 = 36,457.59 : x
2. Step 2: Convert to fraction form
   65,139.63/89,886.33 = 36,457.59/x
3. Step 3: Cross multiply
   65,139.63x = 89,886.33 × 36,457.59
4. Step 4: Simplify right side
   65,139.63x = 3,277,038,965.74
5. Step 5: Solve for x
   x = 3,277,038,965.74/65,139.63
6. Step 6: Final answer
   x = 50,307.91