Finding the Fourth Proportional to 375,017,695.83, 517,475,342.25 and 216,253,682.69

Step by Step Solution

1. Step 1: Write the proportion equation
   375,017,695.83 : 517,475,342.25 = 216,253,682.69 : x
2. Step 2: Convert to fraction form
   375,017,695.83/517,475,342.25 = 216,253,682.69/x
3. Step 3: Cross multiply
   375,017,695.83x = 517,475,342.25 × 216,253,682.69
4. Step 4: Simplify right side
   375,017,695.83x = 111,905,948,460,243,280
5. Step 5: Solve for x
   x = 111,905,948,460,243,280/375,017,695.83
6. Step 6: Final answer
   x = 298,401,781.31