Finding the Fourth Proportional to 249,123, 373,705.56 and 78,383.88

Step by Step Solution

1. Step 1: Write the proportion equation
   249,123 : 373,705.56 = 78,383.88 : x
2. Step 2: Convert to fraction form
   249,123/373,705.56 = 78,383.88/x
3. Step 3: Cross multiply
   249,123x = 373,705.56 × 78,383.88
4. Step 4: Simplify right side
   249,123x = 29,292,491,770.37
5. Step 5: Solve for x
   x = 29,292,491,770.37/249,123
6. Step 6: Final answer
   x = 117,582.45