Finding the Fourth Proportional to 65,993.31, 91,069.65 and 37,312.49

Step by Step Solution

1. Step 1: Write the proportion equation
   65,993.31 : 91,069.65 = 37,312.49 : x
2. Step 2: Convert to fraction form
   65,993.31/91,069.65 = 37,312.49/x
3. Step 3: Cross multiply
   65,993.31x = 91,069.65 × 37,312.49
4. Step 4: Simplify right side
   65,993.31x = 3,398,035,632.60
5. Step 5: Solve for x
   x = 3,398,035,632.60/65,993.31
6. Step 6: Final answer
   x = 51,490.61