Finding the Fourth Proportional to 147,810.86, 203,965.61 and 83,290.60

Step by Step Solution

1. Step 1: Write the proportion equation
   147,810.86 : 203,965.61 = 83,290.60 : x
2. Step 2: Convert to fraction form
   147,810.86/203,965.61 = 83,290.60/x
3. Step 3: Cross multiply
   147,810.86x = 203,965.61 × 83,290.60
4. Step 4: Simplify right side
   147,810.86x = 16,988,418,036.27
5. Step 5: Solve for x
   x = 16,988,418,036.27/147,810.86
6. Step 6: Final answer
   x = 114,933.49