Finding the Fourth Proportional to 72,150,588.66, 108,243,819.72 and 21,033,056.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72,150,588.66 : 108,243,819.72 = 21,033,056.82 : x
2. Step 2: Convert to fraction form
   72,150,588.66/108,243,819.72 = 21,033,056.82/x
3. Step 3: Cross multiply
   72,150,588.66x = 108,243,819.72 × 21,033,056.82
4. Step 4: Simplify right side
   72,150,588.66x = 2,276,698,410,584,596.50
5. Step 5: Solve for x
   x = 2,276,698,410,584,596.50/72,150,588.66
6. Step 6: Final answer
   x = 31,554,814.08