Finding the Fourth Proportional to 155,477.43, 233,221.01 and 43,158.78

Step by Step Solution

1. Step 1: Write the proportion equation
   155,477.43 : 233,221.01 = 43,158.78 : x
2. Step 2: Convert to fraction form
   155,477.43/233,221.01 = 43,158.78/x
3. Step 3: Cross multiply
   155,477.43x = 233,221.01 × 43,158.78
4. Step 4: Simplify right side
   155,477.43x = 10,065,534,046.17
5. Step 5: Solve for x
   x = 10,065,534,046.17/155,477.43
6. Step 6: Final answer
   x = 64,739.52