Finding the Fourth Proportional to 60,805, 83,910.90 and 34,309

Step by Step Solution

1. Step 1: Write the proportion equation
   60,805 : 83,910.90 = 34,309 : x
2. Step 2: Convert to fraction form
   60,805/83,910.90 = 34,309/x
3. Step 3: Cross multiply
   60,805x = 83,910.90 × 34,309
4. Step 4: Simplify right side
   60,805x = 2,878,899,068.10
5. Step 5: Solve for x
   x = 2,878,899,068.10/60,805
6. Step 6: Final answer
   x = 47,346.42