Finding the Fourth Proportional to 124,619.31, 171,994.39 and 79,250.00

Step by Step Solution

1. Step 1: Write the proportion equation
   124,619.31 : 171,994.39 = 79,250.00 : x
2. Step 2: Convert to fraction form
   124,619.31/171,994.39 = 79,250.00/x
3. Step 3: Cross multiply
   124,619.31x = 171,994.39 × 79,250.00
4. Step 4: Simplify right side
   124,619.31x = 13,630,554,349.40
5. Step 5: Solve for x
   x = 13,630,554,349.40/124,619.31
6. Step 6: Final answer
   x = 109,377.55