Finding the Fourth Proportional to 111,412.63, 153,748.73 and 60,426.57

Step by Step Solution

1. Step 1: Write the proportion equation
   111,412.63 : 153,748.73 = 60,426.57 : x
2. Step 2: Convert to fraction form
   111,412.63/153,748.73 = 60,426.57/x
3. Step 3: Cross multiply
   111,412.63x = 153,748.73 × 60,426.57
4. Step 4: Simplify right side
   111,412.63x = 9,290,508,395.76
5. Step 5: Solve for x
   x = 9,290,508,395.76/111,412.63
6. Step 6: Final answer
   x = 83,388.29