Finding the Fourth Proportional to 112,657.69, 155,475.13 and 64,914.13

Step by Step Solution

1. Step 1: Write the proportion equation
   112,657.69 : 155,475.13 = 64,914.13 : x
2. Step 2: Convert to fraction form
   112,657.69/155,475.13 = 64,914.13/x
3. Step 3: Cross multiply
   112,657.69x = 155,475.13 × 64,914.13
4. Step 4: Simplify right side
   112,657.69x = 10,092,532,800.59
5. Step 5: Solve for x
   x = 10,092,532,800.59/112,657.69
6. Step 6: Final answer
   x = 89,585.83