Finding the Fourth Proportional to 121,997.86, 183,006.15 and 42,002.98

Step by Step Solution

1. Step 1: Write the proportion equation
   121,997.86 : 183,006.15 = 42,002.98 : x
2. Step 2: Convert to fraction form
   121,997.86/183,006.15 = 42,002.98/x
3. Step 3: Cross multiply
   121,997.86x = 183,006.15 × 42,002.98
4. Step 4: Simplify right side
   121,997.86x = 7,686,803,658.33
5. Step 5: Solve for x
   x = 7,686,803,658.33/121,997.86
6. Step 6: Final answer
   x = 63,007.69