Finding the Fourth Proportional to 106,304.40, 146,752.56 and 72,488.52

Step by Step Solution

1. Step 1: Write the proportion equation
   106,304.40 : 146,752.56 = 72,488.52 : x
2. Step 2: Convert to fraction form
   106,304.40/146,752.56 = 72,488.52/x
3. Step 3: Cross multiply
   106,304.40x = 146,752.56 × 72,488.52
4. Step 4: Simplify right side
   106,304.40x = 10,637,875,880.61
5. Step 5: Solve for x
   x = 10,637,875,880.61/106,304.40
6. Step 6: Final answer
   x = 100,069.95