Finding the Fourth Proportional to 152,997,016.35, 229,370,471.85 and 71,166,912.15

Step by Step Solution

1. Step 1: Write the proportion equation
   152,997,016.35 : 229,370,471.85 = 71,166,912.15 : x
2. Step 2: Convert to fraction form
   152,997,016.35/229,370,471.85 = 71,166,912.15/x
3. Step 3: Cross multiply
   152,997,016.35x = 229,370,471.85 × 71,166,912.15
4. Step 4: Simplify right side
   152,997,016.35x = 16,323,588,219,952,998
5. Step 5: Solve for x
   x = 16,323,588,219,952,998/152,997,016.35
6. Step 6: Final answer
   x = 106,692,199.69