Finding the Fourth Proportional to 78,106.98, 107,787.69 and 42,297.03

Step by Step Solution

1. Step 1: Write the proportion equation
   78,106.98 : 107,787.69 = 42,297.03 : x
2. Step 2: Convert to fraction form
   78,106.98/107,787.69 = 42,297.03/x
3. Step 3: Cross multiply
   78,106.98x = 107,787.69 × 42,297.03
4. Step 4: Simplify right side
   78,106.98x = 4,559,099,157.56
5. Step 5: Solve for x
   x = 4,559,099,157.56/78,106.98
6. Step 6: Final answer
   x = 58,369.93