Finding the Fourth Proportional to 114,978,584.55, 158,671,091.16 and 65,418,957.05

Step by Step Solution

1. Step 1: Write the proportion equation
   114,978,584.55 : 158,671,091.16 = 65,418,957.05 : x
2. Step 2: Convert to fraction form
   114,978,584.55/158,671,091.16 = 65,418,957.05/x
3. Step 3: Cross multiply
   114,978,584.55x = 158,671,091.16 × 65,418,957.05
4. Step 4: Simplify right side
   114,978,584.55x = 10,380,097,296,879,320
5. Step 5: Solve for x
   x = 10,380,097,296,879,320/114,978,584.55
6. Step 6: Final answer
   x = 90,278,527.41