Finding the Fourth Proportional to 110,665.05, 152,692.98 and 65,318.72

Step by Step Solution

1. Step 1: Write the proportion equation
   110,665.05 : 152,692.98 = 65,318.72 : x
2. Step 2: Convert to fraction form
   110,665.05/152,692.98 = 65,318.72/x
3. Step 3: Cross multiply
   110,665.05x = 152,692.98 × 65,318.72
4. Step 4: Simplify right side
   110,665.05x = 9,973,710,006.59
5. Step 5: Solve for x
   x = 9,973,710,006.59/110,665.05
6. Step 6: Final answer
   x = 90,125.20