Finding the Fourth Proportional to 79,234.02, 109,294.38 and 64,719.30

Step by Step Solution

1. Step 1: Write the proportion equation
   79,234.02 : 109,294.38 = 64,719.30 : x
2. Step 2: Convert to fraction form
   79,234.02/109,294.38 = 64,719.30/x
3. Step 3: Cross multiply
   79,234.02x = 109,294.38 × 64,719.30
4. Step 4: Simplify right side
   79,234.02x = 7,073,454,897.47
5. Step 5: Solve for x
   x = 7,073,454,897.47/79,234.02
6. Step 6: Final answer
   x = 89,272.95