Finding the Fourth Proportional to 82,196,360.69, 113,378,723.43 and 53,940,566.72

Step by Step Solution

1. Step 1: Write the proportion equation
   82,196,360.69 : 113,378,723.43 = 53,940,566.72 : x
2. Step 2: Convert to fraction form
   82,196,360.69/113,378,723.43 = 53,940,566.72/x
3. Step 3: Cross multiply
   82,196,360.69x = 113,378,723.43 × 53,940,566.72
4. Step 4: Simplify right side
   82,196,360.69x = 6,115,712,595,885,511
5. Step 5: Solve for x
   x = 6,115,712,595,885,511/82,196,360.69
6. Step 6: Final answer
   x = 74,403,690.69