Finding the Fourth Proportional to 56,971.20, 78,613.48 and 34,309.83

Step by Step Solution

1. Step 1: Write the proportion equation
   56,971.20 : 78,613.48 = 34,309.83 : x
2. Step 2: Convert to fraction form
   56,971.20/78,613.48 = 34,309.83/x
3. Step 3: Cross multiply
   56,971.20x = 78,613.48 × 34,309.83
4. Step 4: Simplify right side
   56,971.20x = 2,697,214,569.89
5. Step 5: Solve for x
   x = 2,697,214,569.89/56,971.20
6. Step 6: Final answer
   x = 47,343.48