Finding the Fourth Proportional to 113,119.39, 156,066.78 and 64,054.34

Step by Step Solution

1. Step 1: Write the proportion equation
   113,119.39 : 156,066.78 = 64,054.34 : x
2. Step 2: Convert to fraction form
   113,119.39/156,066.78 = 64,054.34/x
3. Step 3: Cross multiply
   113,119.39x = 156,066.78 × 64,054.34
4. Step 4: Simplify right side
   113,119.39x = 9,996,753,488.22
5. Step 5: Solve for x
   x = 9,996,753,488.22/113,119.39
6. Step 6: Final answer
   x = 88,373.47