Finding the Fourth Proportional to 249,700.86, 344,505.83 and 152,803.61

Step by Step Solution

1. Step 1: Write the proportion equation
   249,700.86 : 344,505.83 = 152,803.61 : x
2. Step 2: Convert to fraction form
   249,700.86/344,505.83 = 152,803.61/x
3. Step 3: Cross multiply
   249,700.86x = 344,505.83 × 152,803.61
4. Step 4: Simplify right side
   249,700.86x = 52,641,732,003.50
5. Step 5: Solve for x
   x = 52,641,732,003.50/249,700.86
6. Step 6: Final answer
   x = 210,819.19