Finding the Fourth Proportional to 501,139.84, 751,607.76 and 185,521.72

Step by Step Solution

1. Step 1: Write the proportion equation
   501,139.84 : 751,607.76 = 185,521.72 : x
2. Step 2: Convert to fraction form
   501,139.84/751,607.76 = 185,521.72/x
3. Step 3: Cross multiply
   501,139.84x = 751,607.76 × 185,521.72
4. Step 4: Simplify right side
   501,139.84x = 139,439,564,400.55
5. Step 5: Solve for x
   x = 139,439,564,400.55/501,139.84
6. Step 6: Final answer
   x = 278,244.82