Finding the Fourth Proportional to 288,714,164.96, 432,898,300.78 and 91,892,561.67

Step by Step Solution

1. Step 1: Write the proportion equation
   288,714,164.96 : 432,898,300.78 = 91,892,561.67 : x
2. Step 2: Convert to fraction form
   288,714,164.96/432,898,300.78 = 91,892,561.67/x
3. Step 3: Cross multiply
   288,714,164.96x = 432,898,300.78 × 91,892,561.67
4. Step 4: Simplify right side
   288,714,164.96x = 39,780,133,801,034,624
5. Step 5: Solve for x
   x = 39,780,133,801,034,624/288,714,164.96
6. Step 6: Final answer
   x = 137,783,796.67