Finding the Fourth Proportional to 139,004.36, 208,538.60 and 59,044.91

Step by Step Solution

1. Step 1: Write the proportion equation
   139,004.36 : 208,538.60 = 59,044.91 : x
2. Step 2: Convert to fraction form
   139,004.36/208,538.60 = 59,044.91/x
3. Step 3: Cross multiply
   139,004.36x = 208,538.60 × 59,044.91
4. Step 4: Simplify right side
   139,004.36x = 12,313,141,530.61
5. Step 5: Solve for x
   x = 12,313,141,530.61/139,004.36
6. Step 6: Final answer
   x = 88,580.98