Finding the Fourth Proportional to 151,106.17, 208,518.31 and 83,112.18

Step by Step Solution

1. Step 1: Write the proportion equation
   151,106.17 : 208,518.31 = 83,112.18 : x
2. Step 2: Convert to fraction form
   151,106.17/208,518.31 = 83,112.18/x
3. Step 3: Cross multiply
   151,106.17x = 208,518.31 × 83,112.18
4. Step 4: Simplify right side
   151,106.17x = 17,330,411,314.02
5. Step 5: Solve for x
   x = 17,330,411,314.02/151,106.17
6. Step 6: Final answer
   x = 114,690.30