Finding the Fourth Proportional to 151,101.17, 208,515.20 and 83,118.12

Step by Step Solution

1. Step 1: Write the proportion equation
   151,101.17 : 208,515.20 = 83,118.12 : x
2. Step 2: Convert to fraction form
   151,101.17/208,515.20 = 83,118.12/x
3. Step 3: Cross multiply
   151,101.17x = 208,515.20 × 83,118.12
4. Step 4: Simplify right side
   151,101.17x = 17,331,390,999.83
5. Step 5: Solve for x
   x = 17,331,390,999.83/151,101.17
6. Step 6: Final answer
   x = 114,700.58