Finding the Fourth Proportional to 72,404.94, 99,914.72 and 42,195.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,404.94 : 99,914.72 = 42,195.18 : x
2. Step 2: Convert to fraction form
   72,404.94/99,914.72 = 42,195.18/x
3. Step 3: Cross multiply
   72,404.94x = 99,914.72 × 42,195.18
4. Step 4: Simplify right side
   72,404.94x = 4,215,919,384.07
5. Step 5: Solve for x
   x = 4,215,919,384.07/72,404.94
6. Step 6: Final answer
   x = 58,226.96