Finding the Fourth Proportional to 156,770.64, 235,105.80 and 51,564.72

Step by Step Solution

1. Step 1: Write the proportion equation
   156,770.64 : 235,105.80 = 51,564.72 : x
2. Step 2: Convert to fraction form
   156,770.64/235,105.80 = 51,564.72/x
3. Step 3: Cross multiply
   156,770.64x = 235,105.80 × 51,564.72
4. Step 4: Simplify right side
   156,770.64x = 12,123,164,747.38
5. Step 5: Solve for x
   x = 12,123,164,747.38/156,770.64
6. Step 6: Final answer
   x = 77,330.58