Finding the Fourth Proportional to 34,978.79, 52,467.63 and 8,683.76

Step by Step Solution

1. Step 1: Write the proportion equation
   34,978.79 : 52,467.63 = 8,683.76 : x
2. Step 2: Convert to fraction form
   34,978.79/52,467.63 = 8,683.76/x
3. Step 3: Cross multiply
   34,978.79x = 52,467.63 × 8,683.76
4. Step 4: Simplify right side
   34,978.79x = 455,616,044.35
5. Step 5: Solve for x
   x = 455,616,044.35/34,978.79
6. Step 6: Final answer
   x = 13,025.50