Finding the Fourth Proportional to 123,641.47, 185,460.18 and 39,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,641.47 : 185,460.18 = 39,400.50 : x
2. Step 2: Convert to fraction form
   123,641.47/185,460.18 = 39,400.50/x
3. Step 3: Cross multiply
   123,641.47x = 185,460.18 × 39,400.50
4. Step 4: Simplify right side
   123,641.47x = 7,307,223,822.09
5. Step 5: Solve for x
   x = 7,307,223,822.09/123,641.47
6. Step 6: Final answer
   x = 59,100.10