Finding the Fourth Proportional to 56,895.69, 78,479.49 and 34,539.69

Step by Step Solution

1. Step 1: Write the proportion equation
   56,895.69 : 78,479.49 = 34,539.69 : x
2. Step 2: Convert to fraction form
   56,895.69/78,479.49 = 34,539.69/x
3. Step 3: Cross multiply
   56,895.69x = 78,479.49 × 34,539.69
4. Step 4: Simplify right side
   56,895.69x = 2,710,657,255.96
5. Step 5: Solve for x
   x = 2,710,657,255.96/56,895.69
6. Step 6: Final answer
   x = 47,642.58