Finding the Fourth Proportional to 65,900.07, 98,856.72 and 18,515.27

Step by Step Solution

1. Step 1: Write the proportion equation
   65,900.07 : 98,856.72 = 18,515.27 : x
2. Step 2: Convert to fraction form
   65,900.07/98,856.72 = 18,515.27/x
3. Step 3: Cross multiply
   65,900.07x = 98,856.72 × 18,515.27
4. Step 4: Simplify right side
   65,900.07x = 1,830,359,109.26
5. Step 5: Solve for x
   x = 1,830,359,109.26/65,900.07
6. Step 6: Final answer
   x = 27,774.77