Finding the Fourth Proportional to 105,423,499.04, 145,382,221.98 and 82,210,156.16

Step by Step Solution

1. Step 1: Write the proportion equation
   105,423,499.04 : 145,382,221.98 = 82,210,156.16 : x
2. Step 2: Convert to fraction form
   105,423,499.04/145,382,221.98 = 82,210,156.16/x
3. Step 3: Cross multiply
   105,423,499.04x = 145,382,221.98 × 82,210,156.16
4. Step 4: Simplify right side
   105,423,499.04x = 11,951,895,171,863,582
5. Step 5: Solve for x
   x = 11,951,895,171,863,582/105,423,499.04
6. Step 6: Final answer
   x = 113,370,313.84