Finding the Fourth Proportional to 648,659.34, 973,081.96 and 199,417.82

Step by Step Solution

1. Step 1: Write the proportion equation
   648,659.34 : 973,081.96 = 199,417.82 : x
2. Step 2: Convert to fraction form
   648,659.34/973,081.96 = 199,417.82/x
3. Step 3: Cross multiply
   648,659.34x = 973,081.96 × 199,417.82
4. Step 4: Simplify right side
   648,659.34x = 194,049,877,780.57
5. Step 5: Solve for x
   x = 194,049,877,780.57/648,659.34
6. Step 6: Final answer
   x = 299,155.30