Finding the Fourth Proportional to 156,978.95, 235,523.10 and 68,296.10

Step by Step Solution

1. Step 1: Write the proportion equation
   156,978.95 : 235,523.10 = 68,296.10 : x
2. Step 2: Convert to fraction form
   156,978.95/235,523.10 = 68,296.10/x
3. Step 3: Cross multiply
   156,978.95x = 235,523.10 × 68,296.10
4. Step 4: Simplify right side
   156,978.95x = 16,085,309,189.91
5. Step 5: Solve for x
   x = 16,085,309,189.91/156,978.95
6. Step 6: Final answer
   x = 102,467.94