Finding the Fourth Proportional to 72,052.79, 99,434.52 and 45,196.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,052.79 : 99,434.52 = 45,196.43 : x
2. Step 2: Convert to fraction form
   72,052.79/99,434.52 = 45,196.43/x
3. Step 3: Cross multiply
   72,052.79x = 99,434.52 × 45,196.43
4. Step 4: Simplify right side
   72,052.79x = 4,494,084,825.59
5. Step 5: Solve for x
   x = 4,494,084,825.59/72,052.79
6. Step 6: Final answer
   x = 62,372.12