Finding the Fourth Proportional to 138,076.72, 207,071.72 and 59,169.84

Step by Step Solution

1. Step 1: Write the proportion equation
   138,076.72 : 207,071.72 = 59,169.84 : x
2. Step 2: Convert to fraction form
   138,076.72/207,071.72 = 59,169.84/x
3. Step 3: Cross multiply
   138,076.72x = 207,071.72 × 59,169.84
4. Step 4: Simplify right side
   138,076.72x = 12,252,400,540.92
5. Step 5: Solve for x
   x = 12,252,400,540.92/138,076.72
6. Step 6: Final answer
   x = 88,736.18