Finding the Fourth Proportional to 65,505.56, 90,395.06 and 37,208.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,505.56 : 90,395.06 = 37,208.12 : x
2. Step 2: Convert to fraction form
   65,505.56/90,395.06 = 37,208.12/x
3. Step 3: Cross multiply
   65,505.56x = 90,395.06 × 37,208.12
4. Step 4: Simplify right side
   65,505.56x = 3,363,430,239.89
5. Step 5: Solve for x
   x = 3,363,430,239.89/65,505.56
6. Step 6: Final answer
   x = 51,345.72