Finding the Fourth Proportional to 151,161,722.58, 208,602,665.60 and 85,082,182.56

Step by Step Solution

1. Step 1: Write the proportion equation
   151,161,722.58 : 208,602,665.60 = 85,082,182.56 : x
2. Step 2: Convert to fraction form
   151,161,722.58/208,602,665.60 = 85,082,182.56/x
3. Step 3: Cross multiply
   151,161,722.58x = 208,602,665.60 × 85,082,182.56
4. Step 4: Simplify right side
   151,161,722.58x = 17,748,370,077,081,832
5. Step 5: Solve for x
   x = 17,748,370,077,081,832/151,161,722.58
6. Step 6: Final answer
   x = 117,413,124.00