Finding the Fourth Proportional to 377,695.59, 521,221.89 and 207,929.72

Step by Step Solution

1. Step 1: Write the proportion equation
   377,695.59 : 521,221.89 = 207,929.72 : x
2. Step 2: Convert to fraction form
   377,695.59/521,221.89 = 207,929.72/x
3. Step 3: Cross multiply
   377,695.59x = 521,221.89 × 207,929.72
4. Step 4: Simplify right side
   377,695.59x = 108,377,519,039.46
5. Step 5: Solve for x
   x = 108,377,519,039.46/377,695.59
6. Step 6: Final answer
   x = 286,944.09