Finding the Fourth Proportional to 57,111.75, 78,805.71 and 34,434.99

Step by Step Solution

1. Step 1: Write the proportion equation
   57,111.75 : 78,805.71 = 34,434.99 : x
2. Step 2: Convert to fraction form
   57,111.75/78,805.71 = 34,434.99/x
3. Step 3: Cross multiply
   57,111.75x = 78,805.71 × 34,434.99
4. Step 4: Simplify right side
   57,111.75x = 2,713,673,835.79
5. Step 5: Solve for x
   x = 2,713,673,835.79/57,111.75
6. Step 6: Final answer
   x = 47,515.16