Finding the Fourth Proportional to 115,897,856.16, 159,940,314.42 and 63,686,905.32

Step by Step Solution

1. Step 1: Write the proportion equation
   115,897,856.16 : 159,940,314.42 = 63,686,905.32 : x
2. Step 2: Convert to fraction form
   115,897,856.16/159,940,314.42 = 63,686,905.32/x
3. Step 3: Cross multiply
   115,897,856.16x = 159,940,314.42 × 63,686,905.32
4. Step 4: Simplify right side
   115,897,856.16x = 10,186,103,661,317,570
5. Step 5: Solve for x
   x = 10,186,103,661,317,570/115,897,856.16
6. Step 6: Final answer
   x = 87,888,628.82