Finding the Fourth Proportional to 72,471.65, 100,017.59 and 42,266.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,471.65 : 100,017.59 = 42,266.75 : x
2. Step 2: Convert to fraction form
   72,471.65/100,017.59 = 42,266.75/x
3. Step 3: Cross multiply
   72,471.65x = 100,017.59 × 42,266.75
4. Step 4: Simplify right side
   72,471.65x = 4,227,417,760.71
5. Step 5: Solve for x
   x = 4,227,417,760.71/72,471.65
6. Step 6: Final answer
   x = 58,332.02