Finding the Fourth Proportional to 124,559.67, 171,915.72 and 78,014.04

Step by Step Solution

1. Step 1: Write the proportion equation
   124,559.67 : 171,915.72 = 78,014.04 : x
2. Step 2: Convert to fraction form
   124,559.67/171,915.72 = 78,014.04/x
3. Step 3: Cross multiply
   124,559.67x = 171,915.72 × 78,014.04
4. Step 4: Simplify right side
   124,559.67x = 13,411,838,919.47
5. Step 5: Solve for x
   x = 13,411,838,919.47/124,559.67
6. Step 6: Final answer
   x = 107,674.00