Finding the Fourth Proportional to 152,980.10, 211,082.73 and 89,320.58

Step by Step Solution

1. Step 1: Write the proportion equation
   152,980.10 : 211,082.73 = 89,320.58 : x
2. Step 2: Convert to fraction form
   152,980.10/211,082.73 = 89,320.58/x
3. Step 3: Cross multiply
   152,980.10x = 211,082.73 × 89,320.58
4. Step 4: Simplify right side
   152,980.10x = 18,854,031,871.58
5. Step 5: Solve for x
   x = 18,854,031,871.58/152,980.10
6. Step 6: Final answer
   x = 123,245.00