Finding the Fourth Proportional to 429,123.33, 590,834.79 and 377,947.53

Step by Step Solution

1. Step 1: Write the proportion equation
   429,123.33 : 590,834.79 = 377,947.53 : x
2. Step 2: Convert to fraction form
   429,123.33/590,834.79 = 377,947.53/x
3. Step 3: Cross multiply
   429,123.33x = 590,834.79 × 377,947.53
4. Step 4: Simplify right side
   429,123.33x = 223,304,549,518.57
5. Step 5: Solve for x
   x = 223,304,549,518.57/429,123.33
6. Step 6: Final answer
   x = 520,373.83