Finding the Fourth Proportional to 112,655.69, 155,472.37 and 64,912.13

Step by Step Solution

1. Step 1: Write the proportion equation
   112,655.69 : 155,472.37 = 64,912.13 : x
2. Step 2: Convert to fraction form
   112,655.69/155,472.37 = 64,912.13/x
3. Step 3: Cross multiply
   112,655.69x = 155,472.37 × 64,912.13
4. Step 4: Simplify right side
   112,655.69x = 10,092,042,692.85
5. Step 5: Solve for x
   x = 10,092,042,692.85/112,655.69
6. Step 6: Final answer
   x = 89,583.07