Finding the Fourth Proportional to 173,840.80, 243,902 and 173,840.80

Step by Step Solution

1. Step 1: Write the proportion equation
   173,840.80 : 243,902 = 173,840.80 : x
2. Step 2: Convert to fraction form
   173,840.80/243,902 = 173,840.80/x
3. Step 3: Cross multiply
   173,840.80x = 243,902 × 173,840.80
4. Step 4: Simplify right side
   173,840.80x = 42,400,118,801.60
5. Step 5: Solve for x
   x = 42,400,118,801.60/173,840.80
6. Step 6: Final answer
   x = 243,902