Finding the Fourth Proportional to 151,652.72, 209,281.47 and 83,670.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,652.72 : 209,281.47 = 83,670.50 : x
2. Step 2: Convert to fraction form
   151,652.72/209,281.47 = 83,670.50/x
3. Step 3: Cross multiply
   151,652.72x = 209,281.47 × 83,670.50
4. Step 4: Simplify right side
   151,652.72x = 17,510,685,235.64
5. Step 5: Solve for x
   x = 17,510,685,235.64/151,652.72
6. Step 6: Final answer
   x = 115,465.69