Finding the Fourth Proportional to 123,417.15, 185,131.80 and 64,368.15

Step by Step Solution

1. Step 1: Write the proportion equation
   123,417.15 : 185,131.80 = 64,368.15 : x
2. Step 2: Convert to fraction form
   123,417.15/185,131.80 = 64,368.15/x
3. Step 3: Cross multiply
   123,417.15x = 185,131.80 × 64,368.15
4. Step 4: Simplify right side
   123,417.15x = 11,916,591,472.17
5. Step 5: Solve for x
   x = 11,916,591,472.17/123,417.15
6. Step 6: Final answer
   x = 96,555.39