Finding the Fourth Proportional to 65,985.48, 91,064.79 and 37,690.56

Step by Step Solution

1. Step 1: Write the proportion equation
   65,985.48 : 91,064.79 = 37,690.56 : x
2. Step 2: Convert to fraction form
   65,985.48/91,064.79 = 37,690.56/x
3. Step 3: Cross multiply
   65,985.48x = 91,064.79 × 37,690.56
4. Step 4: Simplify right side
   65,985.48x = 3,432,282,931.38
5. Step 5: Solve for x
   x = 3,432,282,931.38/65,985.48
6. Step 6: Final answer
   x = 52,015.73