Finding the Fourth Proportional to 359,061.99, 538,606.67 and 134,398.77

Step by Step Solution

1. Step 1: Write the proportion equation
   359,061.99 : 538,606.67 = 134,398.77 : x
2. Step 2: Convert to fraction form
   359,061.99/538,606.67 = 134,398.77/x
3. Step 3: Cross multiply
   359,061.99x = 538,606.67 × 134,398.77
4. Step 4: Simplify right side
   359,061.99x = 72,388,073,961.80
5. Step 5: Solve for x
   x = 72,388,073,961.80/359,061.99
6. Step 6: Final answer
   x = 201,603.28