Finding the Fourth Proportional to 156,938.58, 216,795.96 and 142,766.82

Step by Step Solution

1. Step 1: Write the proportion equation
   156,938.58 : 216,795.96 = 142,766.82 : x
2. Step 2: Convert to fraction form
   156,938.58/216,795.96 = 142,766.82/x
3. Step 3: Cross multiply
   156,938.58x = 216,795.96 × 142,766.82
4. Step 4: Simplify right side
   156,938.58x = 30,951,269,798.05
5. Step 5: Solve for x
   x = 30,951,269,798.05/156,938.58
6. Step 6: Final answer
   x = 197,219.00