Finding the Fourth Proportional to 139,501.64, 209,279.38 and 59,538.44

Step by Step Solution

1. Step 1: Write the proportion equation
   139,501.64 : 209,279.38 = 59,538.44 : x
2. Step 2: Convert to fraction form
   139,501.64/209,279.38 = 59,538.44/x
3. Step 3: Cross multiply
   139,501.64x = 209,279.38 × 59,538.44
4. Step 4: Simplify right side
   139,501.64x = 12,460,167,809.37
5. Step 5: Solve for x
   x = 12,460,167,809.37/139,501.64
6. Step 6: Final answer
   x = 89,319.15