Finding the Fourth Proportional to 151,090, 208,508.78 and 83,103.48

Step by Step Solution

1. Step 1: Write the proportion equation
   151,090 : 208,508.78 = 83,103.48 : x
2. Step 2: Convert to fraction form
   151,090/208,508.78 = 83,103.48/x
3. Step 3: Cross multiply
   151,090x = 208,508.78 × 83,103.48
4. Step 4: Simplify right side
   151,090x = 17,327,805,228.55
5. Step 5: Solve for x
   x = 17,327,805,228.55/151,090
6. Step 6: Final answer
   x = 114,685.32