Finding the Fourth Proportional to 151,501.59, 209,090.16 and 91,103.13

Step by Step Solution

1. Step 1: Write the proportion equation
   151,501.59 : 209,090.16 = 91,103.13 : x
2. Step 2: Convert to fraction form
   151,501.59/209,090.16 = 91,103.13/x
3. Step 3: Cross multiply
   151,501.59x = 209,090.16 × 91,103.13
4. Step 4: Simplify right side
   151,501.59x = 19,048,768,028.20
5. Step 5: Solve for x
   x = 19,048,768,028.20/151,501.59
6. Step 6: Final answer
   x = 125,733.12