Finding the Fourth Proportional to 21,234,610, 31,852,031.64 and 5,278,258

Step by Step Solution

1. Step 1: Write the proportion equation
   21,234,610 : 31,852,031.64 = 5,278,258 : x
2. Step 2: Convert to fraction form
   21,234,610/31,852,031.64 = 5,278,258/x
3. Step 3: Cross multiply
   21,234,610x = 31,852,031.64 × 5,278,258
4. Step 4: Simplify right side
   21,234,610x = 168,123,240,820,083.12
5. Step 5: Solve for x
   x = 168,123,240,820,083.12/21,234,610
6. Step 6: Final answer
   x = 7,917,415.99