Finding the Fourth Proportional to 65,978.88, 91,051.86 and 37,684.62

Step by Step Solution

1. Step 1: Write the proportion equation
   65,978.88 : 91,051.86 = 37,684.62 : x
2. Step 2: Convert to fraction form
   65,978.88/91,051.86 = 37,684.62/x
3. Step 3: Cross multiply
   65,978.88x = 91,051.86 × 37,684.62
4. Step 4: Simplify right side
   65,978.88x = 3,431,254,744.39
5. Step 5: Solve for x
   x = 3,431,254,744.39/65,978.88
6. Step 6: Final answer
   x = 52,005.35