Finding the Fourth Proportional to 72,394.84, 99,896.81 and 42,173.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,394.84 : 99,896.81 = 42,173.84 : x
2. Step 2: Convert to fraction form
   72,394.84/99,896.81 = 42,173.84/x
3. Step 3: Cross multiply
   72,394.84x = 99,896.81 × 42,173.84
4. Step 4: Simplify right side
   72,394.84x = 4,213,032,081.45
5. Step 5: Solve for x
   x = 4,213,032,081.45/72,394.84
6. Step 6: Final answer
   x = 58,195.20