Finding the Fourth Proportional to 114,997.30, 158,696.10 and 64,696.30

Step by Step Solution

1. Step 1: Write the proportion equation
   114,997.30 : 158,696.10 = 64,696.30 : x
2. Step 2: Convert to fraction form
   114,997.30/158,696.10 = 64,696.30/x
3. Step 3: Cross multiply
   114,997.30x = 158,696.10 × 64,696.30
4. Step 4: Simplify right side
   114,997.30x = 10,267,050,494.43
5. Step 5: Solve for x
   x = 10,267,050,494.43/114,997.30
6. Step 6: Final answer
   x = 89,280.80