Finding the Fourth Proportional to 139,167.52, 208,762.56 and 39,328.54

Step by Step Solution

1. Step 1: Write the proportion equation
   139,167.52 : 208,762.56 = 39,328.54 : x
2. Step 2: Convert to fraction form
   139,167.52/208,762.56 = 39,328.54/x
3. Step 3: Cross multiply
   139,167.52x = 208,762.56 × 39,328.54
4. Step 4: Simplify right side
   139,167.52x = 8,210,326,691.46
5. Step 5: Solve for x
   x = 8,210,326,691.46/139,167.52
6. Step 6: Final answer
   x = 58,996.00