Finding the Fourth Proportional to 39,958,250.71, 55,142,384.18 and 21,623,536.71

Step by Step Solution

1. Step 1: Write the proportion equation
   39,958,250.71 : 55,142,384.18 = 21,623,536.71 : x
2. Step 2: Convert to fraction form
   39,958,250.71/55,142,384.18 = 21,623,536.71/x
3. Step 3: Cross multiply
   39,958,250.71x = 55,142,384.18 × 21,623,536.71
4. Step 4: Simplify right side
   39,958,250.71x = 1,192,373,368,485,035.50
5. Step 5: Solve for x
   x = 1,192,373,368,485,035.50/39,958,250.71
6. Step 6: Final answer
   x = 29,840,479.68