Finding the Fourth Proportional to 151,422.06, 208,959.68 and 83,445.30

Step by Step Solution

1. Step 1: Write the proportion equation
   151,422.06 : 208,959.68 = 83,445.30 : x
2. Step 2: Convert to fraction form
   151,422.06/208,959.68 = 83,445.30/x
3. Step 3: Cross multiply
   151,422.06x = 208,959.68 × 83,445.30
4. Step 4: Simplify right side
   151,422.06x = 17,436,703,185.50
5. Step 5: Solve for x
   x = 17,436,703,185.50/151,422.06
6. Step 6: Final answer
   x = 115,152.99