Finding the Fourth Proportional to 14,039,575.32, 21,060,648.18 and 3,942,128.28

Step by Step Solution

1. Step 1: Write the proportion equation
   14,039,575.32 : 21,060,648.18 = 3,942,128.28 : x
2. Step 2: Convert to fraction form
   14,039,575.32/21,060,648.18 = 3,942,128.28/x
3. Step 3: Cross multiply
   14,039,575.32x = 21,060,648.18 × 3,942,128.28
4. Step 4: Simplify right side
   14,039,575.32x = 83,023,776,785,508.53
5. Step 5: Solve for x
   x = 83,023,776,785,508.53/14,039,575.32
6. Step 6: Final answer
   x = 5,913,553.29