Finding the Fourth Proportional to 65,405.70, 90,260.06 and 37,111.32

Step by Step Solution

1. Step 1: Write the proportion equation
   65,405.70 : 90,260.06 = 37,111.32 : x
2. Step 2: Convert to fraction form
   65,405.70/90,260.06 = 37,111.32/x
3. Step 3: Cross multiply
   65,405.70x = 90,260.06 × 37,111.32
4. Step 4: Simplify right side
   65,405.70x = 3,349,669,784.32
5. Step 5: Solve for x
   x = 3,349,669,784.32/65,405.70
6. Step 6: Final answer
   x = 51,213.73