Finding the Fourth Proportional to 131,906.19, 182,003.72 and 78,167.55

Step by Step Solution

1. Step 1: Write the proportion equation
   131,906.19 : 182,003.72 = 78,167.55 : x
2. Step 2: Convert to fraction form
   131,906.19/182,003.72 = 78,167.55/x
3. Step 3: Cross multiply
   131,906.19x = 182,003.72 × 78,167.55
4. Step 4: Simplify right side
   131,906.19x = 14,226,784,492.45
5. Step 5: Solve for x
   x = 14,226,784,492.45/131,906.19
6. Step 6: Final answer
   x = 107,855.32