Finding the Fourth Proportional to 373,531.82, 515,498.27 and 212,401.86

Step by Step Solution

1. Step 1: Write the proportion equation
   373,531.82 : 515,498.27 = 212,401.86 : x
2. Step 2: Convert to fraction form
   373,531.82/515,498.27 = 212,401.86/x
3. Step 3: Cross multiply
   373,531.82x = 515,498.27 × 212,401.86
4. Step 4: Simplify right side
   373,531.82x = 109,492,791,374.78
5. Step 5: Solve for x
   x = 109,492,791,374.78/373,531.82
6. Step 6: Final answer
   x = 293,128.42