Finding the Fourth Proportional to 139,053, 208,585.98 and 40,557

Step by Step Solution

1. Step 1: Write the proportion equation
   139,053 : 208,585.98 = 40,557 : x
2. Step 2: Convert to fraction form
   139,053/208,585.98 = 40,557/x
3. Step 3: Cross multiply
   139,053x = 208,585.98 × 40,557
4. Step 4: Simplify right side
   139,053x = 8,459,621,590.86
5. Step 5: Solve for x
   x = 8,459,621,590.86/139,053
6. Step 6: Final answer
   x = 60,837.39