Finding the Fourth Proportional to 155,064.01, 213,993.50 and 87,092.96

Step by Step Solution

1. Step 1: Write the proportion equation
   155,064.01 : 213,993.50 = 87,092.96 : x
2. Step 2: Convert to fraction form
   155,064.01/213,993.50 = 87,092.96/x
3. Step 3: Cross multiply
   155,064.01x = 213,993.50 × 87,092.96
4. Step 4: Simplify right side
   155,064.01x = 18,637,326,900.30
5. Step 5: Solve for x
   x = 18,637,326,900.30/155,064.01
6. Step 6: Final answer
   x = 120,191.19