Finding the Fourth Proportional to 72,358.50, 99,866.62 and 45,505.02

Step by Step Solution

1. Step 1: Write the proportion equation
   72,358.50 : 99,866.62 = 45,505.02 : x
2. Step 2: Convert to fraction form
   72,358.50/99,866.62 = 45,505.02/x
3. Step 3: Cross multiply
   72,358.50x = 99,866.62 × 45,505.02
4. Step 4: Simplify right side
   72,358.50x = 4,544,432,540.43
5. Step 5: Solve for x
   x = 4,544,432,540.43/72,358.50
6. Step 6: Final answer
   x = 62,804.41