Finding the Fourth Proportional to 72,366.72, 99,868.32 and 40,528.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,366.72 : 99,868.32 = 40,528.32 : x
2. Step 2: Convert to fraction form
   72,366.72/99,868.32 = 40,528.32/x
3. Step 3: Cross multiply
   72,366.72x = 99,868.32 × 40,528.32
4. Step 4: Simplify right side
   72,366.72x = 4,047,495,230.82
5. Step 5: Solve for x
   x = 4,047,495,230.82/72,366.72
6. Step 6: Final answer
   x = 55,930.34