Finding the Fourth Proportional to 314,109.72, 470,892.42 and 126,999.72

Step by Step Solution

1. Step 1: Write the proportion equation
   314,109.72 : 470,892.42 = 126,999.72 : x
2. Step 2: Convert to fraction form
   314,109.72/470,892.42 = 126,999.72/x
3. Step 3: Cross multiply
   314,109.72x = 470,892.42 × 126,999.72
4. Step 4: Simplify right side
   314,109.72x = 59,803,205,490.12
5. Step 5: Solve for x
   x = 59,803,205,490.12/314,109.72
6. Step 6: Final answer
   x = 190,389.54