Finding the Fourth Proportional to 113,870.21, 157,139.10 and 62,881.68

Step by Step Solution

1. Step 1: Write the proportion equation
   113,870.21 : 157,139.10 = 62,881.68 : x
2. Step 2: Convert to fraction form
   113,870.21/157,139.10 = 62,881.68/x
3. Step 3: Cross multiply
   113,870.21x = 157,139.10 × 62,881.68
4. Step 4: Simplify right side
   113,870.21x = 9,881,170,601.69
5. Step 5: Solve for x
   x = 9,881,170,601.69/113,870.21
6. Step 6: Final answer
   x = 86,775.73