Finding the Fourth Proportional to 65,085.32, 97,590.61 and 25,620.90

Step by Step Solution

1. Step 1: Write the proportion equation
   65,085.32 : 97,590.61 = 25,620.90 : x
2. Step 2: Convert to fraction form
   65,085.32/97,590.61 = 25,620.90/x
3. Step 3: Cross multiply
   65,085.32x = 97,590.61 × 25,620.90
4. Step 4: Simplify right side
   65,085.32x = 2,500,359,131.64
5. Step 5: Solve for x
   x = 2,500,359,131.64/65,085.32
6. Step 6: Final answer
   x = 38,416.64