Finding the Fourth Proportional to 293,791,856.69, 405,432,743.72 and 161,630,017.95

Step by Step Solution

1. Step 1: Write the proportion equation
   293,791,856.69 : 405,432,743.72 = 161,630,017.95 : x
2. Step 2: Convert to fraction form
   293,791,856.69/405,432,743.72 = 161,630,017.95/x
3. Step 3: Cross multiply
   293,791,856.69x = 405,432,743.72 × 161,630,017.95
4. Step 4: Simplify right side
   293,791,856.69x = 65,530,101,645,693,576
5. Step 5: Solve for x
   x = 65,530,101,645,693,576/293,791,856.69
6. Step 6: Final answer
   x = 223,049,414.59