Finding the Fourth Proportional to 156,778.72, 235,207.14 and 45,970.72

Step by Step Solution

1. Step 1: Write the proportion equation
   156,778.72 : 235,207.14 = 45,970.72 : x
2. Step 2: Convert to fraction form
   156,778.72/235,207.14 = 45,970.72/x
3. Step 3: Cross multiply
   156,778.72x = 235,207.14 × 45,970.72
4. Step 4: Simplify right side
   156,778.72x = 10,812,641,574.94
5. Step 5: Solve for x
   x = 10,812,641,574.94/156,778.72
6. Step 6: Final answer
   x = 68,967.53