Finding the Fourth Proportional to 113,114.37, 169,693.43 and 42,988.22

Step by Step Solution

1. Step 1: Write the proportion equation
   113,114.37 : 169,693.43 = 42,988.22 : x
2. Step 2: Convert to fraction form
   113,114.37/169,693.43 = 42,988.22/x
3. Step 3: Cross multiply
   113,114.37x = 169,693.43 × 42,988.22
4. Step 4: Simplify right side
   113,114.37x = 7,294,818,316.15
5. Step 5: Solve for x
   x = 7,294,818,316.15/113,114.37
6. Step 6: Final answer
   x = 64,490.64