Finding the Fourth Proportional to 151,749.94, 209,426.52 and 83,780.02

Step by Step Solution

1. Step 1: Write the proportion equation
   151,749.94 : 209,426.52 = 83,780.02 : x
2. Step 2: Convert to fraction form
   151,749.94/209,426.52 = 83,780.02/x
3. Step 3: Cross multiply
   151,749.94x = 209,426.52 × 83,780.02
4. Step 4: Simplify right side
   151,749.94x = 17,545,758,034.13
5. Step 5: Solve for x
   x = 17,545,758,034.13/151,749.94
6. Step 6: Final answer
   x = 115,622.83