Finding the Fourth Proportional to 136,359.09, 188,233.61 and 91,673.01

Step by Step Solution

1. Step 1: Write the proportion equation
   136,359.09 : 188,233.61 = 91,673.01 : x
2. Step 2: Convert to fraction form
   136,359.09/188,233.61 = 91,673.01/x
3. Step 3: Cross multiply
   136,359.09x = 188,233.61 × 91,673.01
4. Step 4: Simplify right side
   136,359.09x = 17,255,941,153.50
5. Step 5: Solve for x
   x = 17,255,941,153.50/136,359.09
6. Step 6: Final answer
   x = 126,547.79