Finding the Fourth Proportional to 148,499.93, 204,932.57 and 80,519.20

Step by Step Solution

1. Step 1: Write the proportion equation
   148,499.93 : 204,932.57 = 80,519.20 : x
2. Step 2: Convert to fraction form
   148,499.93/204,932.57 = 80,519.20/x
3. Step 3: Cross multiply
   148,499.93x = 204,932.57 × 80,519.20
4. Step 4: Simplify right side
   148,499.93x = 16,501,005,675.42
5. Step 5: Solve for x
   x = 16,501,005,675.42/148,499.93
6. Step 6: Final answer
   x = 111,117.93