Finding the Fourth Proportional to 78,123.60, 107,817.20 and 44,138.32

Step by Step Solution

1. Step 1: Write the proportion equation
   78,123.60 : 107,817.20 = 44,138.32 : x
2. Step 2: Convert to fraction form
   78,123.60/107,817.20 = 44,138.32/x
3. Step 3: Cross multiply
   78,123.60x = 107,817.20 × 44,138.32
4. Step 4: Simplify right side
   78,123.60x = 4,758,870,075.10
5. Step 5: Solve for x
   x = 4,758,870,075.10/78,123.60
6. Step 6: Final answer
   x = 60,914.63