Finding the Fourth Proportional to 147,567.61, 221,393.94 and 72,710.25

Step by Step Solution

1. Step 1: Write the proportion equation
   147,567.61 : 221,393.94 = 72,710.25 : x
2. Step 2: Convert to fraction form
   147,567.61/221,393.94 = 72,710.25/x
3. Step 3: Cross multiply
   147,567.61x = 221,393.94 × 72,710.25
4. Step 4: Simplify right side
   147,567.61x = 16,097,608,725.89
5. Step 5: Solve for x
   x = 16,097,608,725.89/147,567.61
6. Step 6: Final answer
   x = 109,086.33