Finding the Fourth Proportional to 112,402.18, 155,110.55 and 64,010.71

Step by Step Solution

1. Step 1: Write the proportion equation
   112,402.18 : 155,110.55 = 64,010.71 : x
2. Step 2: Convert to fraction form
   112,402.18/155,110.55 = 64,010.71/x
3. Step 3: Cross multiply
   112,402.18x = 155,110.55 × 64,010.71
4. Step 4: Simplify right side
   112,402.18x = 9,928,735,435.33
5. Step 5: Solve for x
   x = 9,928,735,435.33/112,402.18
6. Step 6: Final answer
   x = 88,332.23