Finding the Fourth Proportional to 65,263.61, 89,984.98 and 55,174.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,263.61 : 89,984.98 = 55,174.25 : x
2. Step 2: Convert to fraction form
   65,263.61/89,984.98 = 55,174.25/x
3. Step 3: Cross multiply
   65,263.61x = 89,984.98 × 55,174.25
4. Step 4: Simplify right side
   65,263.61x = 4,964,853,782.77
5. Step 5: Solve for x
   x = 4,964,853,782.77/65,263.61
6. Step 6: Final answer
   x = 76,073.85