Finding the Fourth Proportional to 56,996.79, 78,658.56 and 34,342.89

Step by Step Solution

1. Step 1: Write the proportion equation
   56,996.79 : 78,658.56 = 34,342.89 : x
2. Step 2: Convert to fraction form
   56,996.79/78,658.56 = 34,342.89/x
3. Step 3: Cross multiply
   56,996.79x = 78,658.56 × 34,342.89
4. Step 4: Simplify right side
   56,996.79x = 2,701,362,273.64
5. Step 5: Solve for x
   x = 2,701,362,273.64/56,996.79
6. Step 6: Final answer
   x = 47,394.99