Finding the Fourth Proportional to 156,977.38, 235,525.83 and 72,778.18

Step by Step Solution

1. Step 1: Write the proportion equation
   156,977.38 : 235,525.83 = 72,778.18 : x
2. Step 2: Convert to fraction form
   156,977.38/235,525.83 = 72,778.18/x
3. Step 3: Cross multiply
   156,977.38x = 235,525.83 × 72,778.18
4. Step 4: Simplify right side
   156,977.38x = 17,141,141,250.39
5. Step 5: Solve for x
   x = 17,141,141,250.39/156,977.38
6. Step 6: Final answer
   x = 109,194.98