Finding the Fourth Proportional to 109,544.58, 151,034.54 and 91,421.38

Step by Step Solution

1. Step 1: Write the proportion equation
   109,544.58 : 151,034.54 = 91,421.38 : x
2. Step 2: Convert to fraction form
   109,544.58/151,034.54 = 91,421.38/x
3. Step 3: Cross multiply
   109,544.58x = 151,034.54 × 91,421.38
4. Step 4: Simplify right side
   109,544.58x = 13,807,786,074.47
5. Step 5: Solve for x
   x = 13,807,786,074.47/109,544.58
6. Step 6: Final answer
   x = 126,047.19