Finding the Fourth Proportional to 283,385.99, 391,068.41 and 156,061.59

Step by Step Solution

1. Step 1: Write the proportion equation
   283,385.99 : 391,068.41 = 156,061.59 : x
2. Step 2: Convert to fraction form
   283,385.99/391,068.41 = 156,061.59/x
3. Step 3: Cross multiply
   283,385.99x = 391,068.41 × 156,061.59
4. Step 4: Simplify right side
   283,385.99x = 61,030,755,616.56
5. Step 5: Solve for x
   x = 61,030,755,616.56/283,385.99
6. Step 6: Final answer
   x = 215,362.64