Finding the Fourth Proportional to 124,614.56, 171,947.82 and 73,620.20

Step by Step Solution

1. Step 1: Write the proportion equation
   124,614.56 : 171,947.82 = 73,620.20 : x
2. Step 2: Convert to fraction form
   124,614.56/171,947.82 = 73,620.20/x
3. Step 3: Cross multiply
   124,614.56x = 171,947.82 × 73,620.20
4. Step 4: Simplify right side
   124,614.56x = 12,658,832,897.96
5. Step 5: Solve for x
   x = 12,658,832,897.96/124,614.56
6. Step 6: Final answer
   x = 101,583.90