Finding the Fourth Proportional to 31,068,411.84, 42,892,799.68 and 27,621,131.20

Step by Step Solution

1. Step 1: Write the proportion equation
   31,068,411.84 : 42,892,799.68 = 27,621,131.20 : x
2. Step 2: Convert to fraction form
   31,068,411.84/42,892,799.68 = 27,621,131.20/x
3. Step 3: Cross multiply
   31,068,411.84x = 42,892,799.68 × 27,621,131.20
4. Step 4: Simplify right side
   31,068,411.84x = 1,184,747,647,496,598
5. Step 5: Solve for x
   x = 1,184,747,647,496,598/31,068,411.84
6. Step 6: Final answer
   x = 38,133,511.74