Finding the Fourth Proportional to 79,737.94, 110,157.33 and 64,401.60

Step by Step Solution

1. Step 1: Write the proportion equation
   79,737.94 : 110,157.33 = 64,401.60 : x
2. Step 2: Convert to fraction form
   79,737.94/110,157.33 = 64,401.60/x
3. Step 3: Cross multiply
   79,737.94x = 110,157.33 × 64,401.60
4. Step 4: Simplify right side
   79,737.94x = 7,094,308,303.73
5. Step 5: Solve for x
   x = 7,094,308,303.73/79,737.94
6. Step 6: Final answer
   x = 88,970.30