Finding the Fourth Proportional to 65,699.51, 90,665.33 and 37,405.13

Step by Step Solution

1. Step 1: Write the proportion equation
   65,699.51 : 90,665.33 = 37,405.13 : x
2. Step 2: Convert to fraction form
   65,699.51/90,665.33 = 37,405.13/x
3. Step 3: Cross multiply
   65,699.51x = 90,665.33 × 37,405.13
4. Step 4: Simplify right side
   65,699.51x = 3,391,347,814.79
5. Step 5: Solve for x
   x = 3,391,347,814.79/65,699.51
6. Step 6: Final answer
   x = 51,619.08