Finding the Fourth Proportional to 149,538.65, 224,242.35 and 55,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   149,538.65 : 224,242.35 = 55,978.79 : x
2. Step 2: Convert to fraction form
   149,538.65/224,242.35 = 55,978.79/x
3. Step 3: Cross multiply
   149,538.65x = 224,242.35 × 55,978.79
4. Step 4: Simplify right side
   149,538.65x = 12,552,814,298.54
5. Step 5: Solve for x
   x = 12,552,814,298.54/149,538.65
6. Step 6: Final answer
   x = 83,943.61