Finding the Fourth Proportional to 56,648.52, 78,102.72 and 35,420.04

Step by Step Solution

1. Step 1: Write the proportion equation
   56,648.52 : 78,102.72 = 35,420.04 : x
2. Step 2: Convert to fraction form
   56,648.52/78,102.72 = 35,420.04/x
3. Step 3: Cross multiply
   56,648.52x = 78,102.72 × 35,420.04
4. Step 4: Simplify right side
   56,648.52x = 2,766,401,466.51
5. Step 5: Solve for x
   x = 2,766,401,466.51/56,648.52
6. Step 6: Final answer
   x = 48,834.49