Finding the Fourth Proportional to 72,068.94, 99,454.23 and 40,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   72,068.94 : 99,454.23 = 40,238.10 : x
2. Step 2: Convert to fraction form
   72,068.94/99,454.23 = 40,238.10/x
3. Step 3: Cross multiply
   72,068.94x = 99,454.23 × 40,238.10
4. Step 4: Simplify right side
   72,068.94x = 4,001,849,252.16
5. Step 5: Solve for x
   x = 4,001,849,252.16/72,068.94
6. Step 6: Final answer
   x = 55,528.07