Finding the Fourth Proportional to 291,899.89, 402,821.67 and 157,763.89

Step by Step Solution

1. Step 1: Write the proportion equation
   291,899.89 : 402,821.67 = 157,763.89 : x
2. Step 2: Convert to fraction form
   291,899.89/402,821.67 = 157,763.89/x
3. Step 3: Cross multiply
   291,899.89x = 402,821.67 × 157,763.89
4. Step 4: Simplify right side
   291,899.89x = 63,550,713,635.50
5. Step 5: Solve for x
   x = 63,550,713,635.50/291,899.89
6. Step 6: Final answer
   x = 217,714.07