Finding the Fourth Proportional to 665,887.89, 918,925.29 and 364,081.89

Step by Step Solution

1. Step 1: Write the proportion equation
   665,887.89 : 918,925.29 = 364,081.89 : x
2. Step 2: Convert to fraction form
   665,887.89/918,925.29 = 364,081.89/x
3. Step 3: Cross multiply
   665,887.89x = 918,925.29 × 364,081.89
4. Step 4: Simplify right side
   665,887.89x = 334,564,056,352.00
5. Step 5: Solve for x
   x = 334,564,056,352.00/665,887.89
6. Step 6: Final answer
   x = 502,433.01