Finding the Fourth Proportional to 147,100.67, 220,440.51 and 83,790.10

Step by Step Solution

1. Step 1: Write the proportion equation
   147,100.67 : 220,440.51 = 83,790.10 : x
2. Step 2: Convert to fraction form
   147,100.67/220,440.51 = 83,790.10/x
3. Step 3: Cross multiply
   147,100.67x = 220,440.51 × 83,790.10
4. Step 4: Simplify right side
   147,100.67x = 18,470,732,376.95
5. Step 5: Solve for x
   x = 18,470,732,376.95/147,100.67
6. Step 6: Final answer
   x = 125,565.25