Finding the Fourth Proportional to 61,136.34, 84,367.35 and 34,278.78

Step by Step Solution

1. Step 1: Write the proportion equation
   61,136.34 : 84,367.35 = 34,278.78 : x
2. Step 2: Convert to fraction form
   61,136.34/84,367.35 = 34,278.78/x
3. Step 3: Cross multiply
   61,136.34x = 84,367.35 × 34,278.78
4. Step 4: Simplify right side
   61,136.34x = 2,892,009,829.83
5. Step 5: Solve for x
   x = 2,892,009,829.83/61,136.34
6. Step 6: Final answer
   x = 47,304.27