Finding the Fourth Proportional to 89,535.80, 123,549.72 and 51,803

Step by Step Solution

1. Step 1: Write the proportion equation
   89,535.80 : 123,549.72 = 51,803 : x
2. Step 2: Convert to fraction form
   89,535.80/123,549.72 = 51,803/x
3. Step 3: Cross multiply
   89,535.80x = 123,549.72 × 51,803
4. Step 4: Simplify right side
   89,535.80x = 6,400,246,145.16
5. Step 5: Solve for x
   x = 6,400,246,145.16/89,535.80
6. Step 6: Final answer
   x = 71,482.54