Finding the Fourth Proportional to 613,300.52, 919,557.11 and 402,692.42

Step by Step Solution

1. Step 1: Write the proportion equation
   613,300.52 : 919,557.11 = 402,692.42 : x
2. Step 2: Convert to fraction form
   613,300.52/919,557.11 = 402,692.42/x
3. Step 3: Cross multiply
   613,300.52x = 919,557.11 × 402,692.42
4. Step 4: Simplify right side
   613,300.52x = 370,298,671,342.86
5. Step 5: Solve for x
   x = 370,298,671,342.86/613,300.52
6. Step 6: Final answer
   x = 603,780.14