Finding the Fourth Proportional to 72,299.94, 99,777.72 and 45,432.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,299.94 : 99,777.72 = 45,432.54 : x
2. Step 2: Convert to fraction form
   72,299.94/99,777.72 = 45,432.54/x
3. Step 3: Cross multiply
   72,299.94x = 99,777.72 × 45,432.54
4. Step 4: Simplify right side
   72,299.94x = 4,533,155,255.01
5. Step 5: Solve for x
   x = 4,533,155,255.01/72,299.94
6. Step 6: Final answer
   x = 62,699.29