Finding the Fourth Proportional to 438,897.83, 658,346.69 and 123,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   438,897.83 : 658,346.69 = 123,354.72 : x
2. Step 2: Convert to fraction form
   438,897.83/658,346.69 = 123,354.72/x
3. Step 3: Cross multiply
   438,897.83x = 658,346.69 × 123,354.72
4. Step 4: Simplify right side
   438,897.83x = 81,210,171,916.26
5. Step 5: Solve for x
   x = 81,210,171,916.26/438,897.83
6. Step 6: Final answer
   x = 185,032.07