Finding the Fourth Proportional to 113,585.01, 170,397.78 and 37,688.10

Step by Step Solution

1. Step 1: Write the proportion equation
   113,585.01 : 170,397.78 = 37,688.10 : x
2. Step 2: Convert to fraction form
   113,585.01/170,397.78 = 37,688.10/x
3. Step 3: Cross multiply
   113,585.01x = 170,397.78 × 37,688.10
4. Step 4: Simplify right side
   113,585.01x = 6,421,967,792.10
5. Step 5: Solve for x
   x = 6,421,967,792.10/113,585.01
6. Step 6: Final answer
   x = 56,538.87