Finding the Fourth Proportional to 20,834,153.82, 28,761,101.06 and 13,876,410.15

Step by Step Solution

1. Step 1: Write the proportion equation
   20,834,153.82 : 28,761,101.06 = 13,876,410.15 : x
2. Step 2: Convert to fraction form
   20,834,153.82/28,761,101.06 = 13,876,410.15/x
3. Step 3: Cross multiply
   20,834,153.82x = 28,761,101.06 × 13,876,410.15
4. Step 4: Simplify right side
   20,834,153.82x = 399,100,834,604,777.69
5. Step 5: Solve for x
   x = 399,100,834,604,777.69/20,834,153.82
6. Step 6: Final answer
   x = 19,156,085.63