Finding the Fourth Proportional to 114,947.24, 172,196.72 and 64,875.88

Step by Step Solution

1. Step 1: Write the proportion equation
   114,947.24 : 172,196.72 = 64,875.88 : x
2. Step 2: Convert to fraction form
   114,947.24/172,196.72 = 64,875.88/x
3. Step 3: Cross multiply
   114,947.24x = 172,196.72 × 64,875.88
4. Step 4: Simplify right side
   114,947.24x = 11,171,413,743.11
5. Step 5: Solve for x
   x = 11,171,413,743.11/114,947.24
6. Step 6: Final answer
   x = 97,187.32