Finding the Fourth Proportional to 72,545, 100,112.46 and 42,351.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,545 : 100,112.46 = 42,351.08 : x
2. Step 2: Convert to fraction form
   72,545/100,112.46 = 42,351.08/x
3. Step 3: Cross multiply
   72,545x = 100,112.46 × 42,351.08
4. Step 4: Simplify right side
   72,545x = 4,239,870,802.46
5. Step 5: Solve for x
   x = 4,239,870,802.46/72,545
6. Step 6: Final answer
   x = 58,444.70