Finding the Fourth Proportional to 375,624,404.31, 518,359,768.49 and 208,358,933.86

Step by Step Solution

1. Step 1: Write the proportion equation
   375,624,404.31 : 518,359,768.49 = 208,358,933.86 : x
2. Step 2: Convert to fraction form
   375,624,404.31/518,359,768.49 = 208,358,933.86/x
3. Step 3: Cross multiply
   375,624,404.31x = 518,359,768.49 × 208,358,933.86
4. Step 4: Simplify right side
   375,624,404.31x = 108,004,888,716,748,496
5. Step 5: Solve for x
   x = 108,004,888,716,748,496/375,624,404.31
6. Step 6: Final answer
   x = 287,534,269.54