Finding the Fourth Proportional to 156,966.12, 235,443.89 and 68,219.63

Step by Step Solution

1. Step 1: Write the proportion equation
   156,966.12 : 235,443.89 = 68,219.63 : x
2. Step 2: Convert to fraction form
   156,966.12/235,443.89 = 68,219.63/x
3. Step 3: Cross multiply
   156,966.12x = 235,443.89 × 68,219.63
4. Step 4: Simplify right side
   156,966.12x = 16,061,895,820.72
5. Step 5: Solve for x
   x = 16,061,895,820.72/156,966.12
6. Step 6: Final answer
   x = 102,327.15