Finding the Fourth Proportional to 664,111.95, 996,061.00 and 190,689.63

Step by Step Solution

1. Step 1: Write the proportion equation
   664,111.95 : 996,061.00 = 190,689.63 : x
2. Step 2: Convert to fraction form
   664,111.95/996,061.00 = 190,689.63/x
3. Step 3: Cross multiply
   664,111.95x = 996,061.00 × 190,689.63
4. Step 4: Simplify right side
   664,111.95x = 189,938,502,593.98
5. Step 5: Solve for x
   x = 189,938,502,593.98/664,111.95
6. Step 6: Final answer
   x = 286,003.74