Finding the Fourth Proportional to 158,784.96, 238,009.50 and 52,140.90

Step by Step Solution

1. Step 1: Write the proportion equation
   158,784.96 : 238,009.50 = 52,140.90 : x
2. Step 2: Convert to fraction form
   158,784.96/238,009.50 = 52,140.90/x
3. Step 3: Cross multiply
   158,784.96x = 238,009.50 × 52,140.90
4. Step 4: Simplify right side
   158,784.96x = 12,410,029,538.55
5. Step 5: Solve for x
   x = 12,410,029,538.55/158,784.96
6. Step 6: Final answer
   x = 78,156.20