Finding the Fourth Proportional to 291,635.06, 437,513.61 and 123,155.78

Step by Step Solution

1. Step 1: Write the proportion equation
   291,635.06 : 437,513.61 = 123,155.78 : x
2. Step 2: Convert to fraction form
   291,635.06/437,513.61 = 123,155.78/x
3. Step 3: Cross multiply
   291,635.06x = 437,513.61 × 123,155.78
4. Step 4: Simplify right side
   291,635.06x = 53,882,329,900.17
5. Step 5: Solve for x
   x = 53,882,329,900.17/291,635.06
6. Step 6: Final answer
   x = 184,759.44