Finding the Fourth Proportional to 114,899.72, 158,561.60 and 64,598.72

Step by Step Solution

1. Step 1: Write the proportion equation
   114,899.72 : 158,561.60 = 64,598.72 : x
2. Step 2: Convert to fraction form
   114,899.72/158,561.60 = 64,598.72/x
3. Step 3: Cross multiply
   114,899.72x = 158,561.60 × 64,598.72
4. Step 4: Simplify right side
   114,899.72x = 10,242,875,285.35
5. Step 5: Solve for x
   x = 10,242,875,285.35/114,899.72
6. Step 6: Final answer
   x = 89,146.22