Finding the Fourth Proportional to 403,131.35, 604,784.52 and 122,641.31

Step by Step Solution

1. Step 1: Write the proportion equation
   403,131.35 : 604,784.52 = 122,641.31 : x
2. Step 2: Convert to fraction form
   403,131.35/604,784.52 = 122,641.31/x
3. Step 3: Cross multiply
   403,131.35x = 604,784.52 × 122,641.31
4. Step 4: Simplify right side
   403,131.35x = 74,171,567,312.48
5. Step 5: Solve for x
   x = 74,171,567,312.48/403,131.35
6. Step 6: Final answer
   x = 183,988.59