Finding the Fourth Proportional to 314,800.18, 472,132.92 and 90,100.27

Step by Step Solution

1. Step 1: Write the proportion equation
   314,800.18 : 472,132.92 = 90,100.27 : x
2. Step 2: Convert to fraction form
   314,800.18/472,132.92 = 90,100.27/x
3. Step 3: Cross multiply
   314,800.18x = 472,132.92 × 90,100.27
4. Step 4: Simplify right side
   314,800.18x = 42,539,303,567.89
5. Step 5: Solve for x
   x = 42,539,303,567.89/314,800.18
6. Step 6: Final answer
   x = 135,131.13