Finding the Fourth Proportional to 152,455,382.56, 210,389,758.98 and 82,840,761.76

Step by Step Solution

1. Step 1: Write the proportion equation
   152,455,382.56 : 210,389,758.98 = 82,840,761.76 : x
2. Step 2: Convert to fraction form
   152,455,382.56/210,389,758.98 = 82,840,761.76/x
3. Step 3: Cross multiply
   152,455,382.56x = 210,389,758.98 × 82,840,761.76
4. Step 4: Simplify right side
   152,455,382.56x = 17,428,847,900,406,000
5. Step 5: Solve for x
   x = 17,428,847,900,406,000/152,455,382.56
6. Step 6: Final answer
   x = 114,320,974.49