Finding the Fourth Proportional to 139,807.83, 209,745 and 45,046.98

Step by Step Solution

1. Step 1: Write the proportion equation
   139,807.83 : 209,745 = 45,046.98 : x
2. Step 2: Convert to fraction form
   139,807.83/209,745 = 45,046.98/x
3. Step 3: Cross multiply
   139,807.83x = 209,745 × 45,046.98
4. Step 4: Simplify right side
   139,807.83x = 9,448,378,820.10
5. Step 5: Solve for x
   x = 9,448,378,820.10/139,807.83
6. Step 6: Final answer
   x = 67,581.18