Finding the Fourth Proportional to 93,016.08, 128,145.24 and 64,672.56

Step by Step Solution

1. Step 1: Write the proportion equation
   93,016.08 : 128,145.24 = 64,672.56 : x
2. Step 2: Convert to fraction form
   93,016.08/128,145.24 = 64,672.56/x
3. Step 3: Cross multiply
   93,016.08x = 128,145.24 × 64,672.56
4. Step 4: Simplify right side
   93,016.08x = 8,287,480,722.61
5. Step 5: Solve for x
   x = 8,287,480,722.61/93,016.08
6. Step 6: Final answer
   x = 89,097.29