Finding the Fourth Proportional to 115,499.30, 173,389.35 and 73,379.30

Step by Step Solution

1. Step 1: Write the proportion equation
   115,499.30 : 173,389.35 = 73,379.30 : x
2. Step 2: Convert to fraction form
   115,499.30/173,389.35 = 73,379.30/x
3. Step 3: Cross multiply
   115,499.30x = 173,389.35 × 73,379.30
4. Step 4: Simplify right side
   115,499.30x = 12,723,189,130.46
5. Step 5: Solve for x
   x = 12,723,189,130.46/115,499.30
6. Step 6: Final answer
   x = 110,158.15