Finding the Fourth Proportional to 123,513.72, 185,518.58 and 73,691.03

Step by Step Solution

1. Step 1: Write the proportion equation
   123,513.72 : 185,518.58 = 73,691.03 : x
2. Step 2: Convert to fraction form
   123,513.72/185,518.58 = 73,691.03/x
3. Step 3: Cross multiply
   123,513.72x = 185,518.58 × 73,691.03
4. Step 4: Simplify right side
   123,513.72x = 13,671,053,948.29
5. Step 5: Solve for x
   x = 13,671,053,948.29/123,513.72
6. Step 6: Final answer
   x = 110,684.50