Finding the Fourth Proportional to 151,146, 208,582.74 and 84,078

Step by Step Solution

1. Step 1: Write the proportion equation
   151,146 : 208,582.74 = 84,078 : x
2. Step 2: Convert to fraction form
   151,146/208,582.74 = 84,078/x
3. Step 3: Cross multiply
   151,146x = 208,582.74 × 84,078
4. Step 4: Simplify right side
   151,146x = 17,537,219,613.72
5. Step 5: Solve for x
   x = 17,537,219,613.72/151,146
6. Step 6: Final answer
   x = 116,028.34