Finding the Fourth Proportional to 56,892.39, 78,495.31 and 34,220.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,892.39 : 78,495.31 = 34,220.04 : x
2. Step 2: Convert to fraction form
   56,892.39/78,495.31 = 34,220.04/x
3. Step 3: Cross multiply
   56,892.39x = 78,495.31 × 34,220.04
4. Step 4: Simplify right side
   56,892.39x = 2,686,112,648.01
5. Step 5: Solve for x
   x = 2,686,112,648.01/56,892.39
6. Step 6: Final answer
   x = 47,213.92