Finding the Fourth Proportional to 507,404.50, 761,151.71 and 133,427.50

Step by Step Solution

1. Step 1: Write the proportion equation
   507,404.50 : 761,151.71 = 133,427.50 : x
2. Step 2: Convert to fraction form
   507,404.50/761,151.71 = 133,427.50/x
3. Step 3: Cross multiply
   507,404.50x = 761,151.71 × 133,427.50
4. Step 4: Simplify right side
   507,404.50x = 101,558,569,118.89
5. Step 5: Solve for x
   x = 101,558,569,118.89/507,404.50
6. Step 6: Final answer
   x = 200,153.07