Finding the Fourth Proportional to 106,002.11, 146,291.88 and 72,085.83

Step by Step Solution

1. Step 1: Write the proportion equation
   106,002.11 : 146,291.88 = 72,085.83 : x
2. Step 2: Convert to fraction form
   106,002.11/146,291.88 = 72,085.83/x
3. Step 3: Cross multiply
   106,002.11x = 146,291.88 × 72,085.83
4. Step 4: Simplify right side
   106,002.11x = 10,545,571,592.06
5. Step 5: Solve for x
   x = 10,545,571,592.06/106,002.11
6. Step 6: Final answer
   x = 99,484.55