Finding the Fourth Proportional to 123,385.35, 185,151.76 and 113,347.02

Step by Step Solution

1. Step 1: Write the proportion equation
   123,385.35 : 185,151.76 = 113,347.02 : x
2. Step 2: Convert to fraction form
   123,385.35/185,151.76 = 113,347.02/x
3. Step 3: Cross multiply
   123,385.35x = 185,151.76 × 113,347.02
4. Step 4: Simplify right side
   123,385.35x = 20,986,400,243.76
5. Step 5: Solve for x
   x = 20,986,400,243.76/123,385.35
6. Step 6: Final answer
   x = 170,088.27