Finding the Fourth Proportional to 56,760.49, 78,320.10 and 34,404.49

Step by Step Solution

1. Step 1: Write the proportion equation
   56,760.49 : 78,320.10 = 34,404.49 : x
2. Step 2: Convert to fraction form
   56,760.49/78,320.10 = 34,404.49/x
3. Step 3: Cross multiply
   56,760.49x = 78,320.10 × 34,404.49
4. Step 4: Simplify right side
   56,760.49x = 2,694,563,097.25
5. Step 5: Solve for x
   x = 2,694,563,097.25/56,760.49
6. Step 6: Final answer
   x = 47,472.51