Finding the Fourth Proportional to 379,969.98, 570,111.90 and 166,627.45

Step by Step Solution

1. Step 1: Write the proportion equation
   379,969.98 : 570,111.90 = 166,627.45 : x
2. Step 2: Convert to fraction form
   379,969.98/570,111.90 = 166,627.45/x
3. Step 3: Cross multiply
   379,969.98x = 570,111.90 × 166,627.45
4. Step 4: Simplify right side
   379,969.98x = 94,996,292,111.66
5. Step 5: Solve for x
   x = 94,996,292,111.66/379,969.98
6. Step 6: Final answer
   x = 250,009.99