Finding the Fourth Proportional to 65,980.88, 91,054.62 and 37,686.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,980.88 : 91,054.62 = 37,686.62 : x
2. Step 2: Convert to fraction form
   65,980.88/91,054.62 = 37,686.62/x
3. Step 3: Cross multiply
   65,980.88x = 91,054.62 × 37,686.62
4. Step 4: Simplify right side
   65,980.88x = 3,431,540,863.18
5. Step 5: Solve for x
   x = 3,431,540,863.18/65,980.88
6. Step 6: Final answer
   x = 52,008.11