Finding the Fourth Proportional to 99,104.69, 136,878.09 and 65,264.51

Step by Step Solution

1. Step 1: Write the proportion equation
   99,104.69 : 136,878.09 = 65,264.51 : x
2. Step 2: Convert to fraction form
   99,104.69/136,878.09 = 65,264.51/x
3. Step 3: Cross multiply
   99,104.69x = 136,878.09 × 65,264.51
4. Step 4: Simplify right side
   99,104.69x = 8,933,281,473.59
5. Step 5: Solve for x
   x = 8,933,281,473.59/99,104.69
6. Step 6: Final answer
   x = 90,139.85