Finding the Fourth Proportional to 151,384,336.61, 208,910,464.59 and 81,769,717.37

Step by Step Solution

1. Step 1: Write the proportion equation
   151,384,336.61 : 208,910,464.59 = 81,769,717.37 : x
2. Step 2: Convert to fraction form
   151,384,336.61/208,910,464.59 = 81,769,717.37/x
3. Step 3: Cross multiply
   151,384,336.61x = 208,910,464.59 × 81,769,717.37
4. Step 4: Simplify right side
   151,384,336.61x = 17,082,549,644,115,140
5. Step 5: Solve for x
   x = 17,082,549,644,115,140/151,384,336.61
6. Step 6: Final answer
   x = 112,842,253.22