Finding the Fourth Proportional to 113,553.83, 156,626.33 and 65,807.98

Step by Step Solution

1. Step 1: Write the proportion equation
   113,553.83 : 156,626.33 = 65,807.98 : x
2. Step 2: Convert to fraction form
   113,553.83/156,626.33 = 65,807.98/x
3. Step 3: Cross multiply
   113,553.83x = 156,626.33 × 65,807.98
4. Step 4: Simplify right side
   113,553.83x = 10,307,261,671.51
5. Step 5: Solve for x
   x = 10,307,261,671.51/113,553.83
6. Step 6: Final answer
   x = 90,769.83