Finding the Fourth Proportional to 116,857.90, 175,364.49 and 42,985.90

Step by Step Solution

1. Step 1: Write the proportion equation
   116,857.90 : 175,364.49 = 42,985.90 : x
2. Step 2: Convert to fraction form
   116,857.90/175,364.49 = 42,985.90/x
3. Step 3: Cross multiply
   116,857.90x = 175,364.49 × 42,985.90
4. Step 4: Simplify right side
   116,857.90x = 7,538,200,430.69
5. Step 5: Solve for x
   x = 7,538,200,430.69/116,857.90
6. Step 6: Final answer
   x = 64,507.41