Finding the Fourth Proportional to 429,887.50, 592,619.50 and 300,424.06

Step by Step Solution

1. Step 1: Write the proportion equation
   429,887.50 : 592,619.50 = 300,424.06 : x
2. Step 2: Convert to fraction form
   429,887.50/592,619.50 = 300,424.06/x
3. Step 3: Cross multiply
   429,887.50x = 592,619.50 × 300,424.06
4. Step 4: Simplify right side
   429,887.50x = 178,037,156,225.17
5. Step 5: Solve for x
   x = 178,037,156,225.17/429,887.50
6. Step 6: Final answer
   x = 414,148.25