Finding the Fourth Proportional to 102,427.72, 153,530.52 and 52,439.23

Step by Step Solution

1. Step 1: Write the proportion equation
   102,427.72 : 153,530.52 = 52,439.23 : x
2. Step 2: Convert to fraction form
   102,427.72/153,530.52 = 52,439.23/x
3. Step 3: Cross multiply
   102,427.72x = 153,530.52 × 52,439.23
4. Step 4: Simplify right side
   102,427.72x = 8,051,022,250.30
5. Step 5: Solve for x
   x = 8,051,022,250.30/102,427.72
6. Step 6: Final answer
   x = 78,601.99