Finding the Fourth Proportional to 109,308.51, 163,985.81 and 35,430.75

Step by Step Solution

1. Step 1: Write the proportion equation
   109,308.51 : 163,985.81 = 35,430.75 : x
2. Step 2: Convert to fraction form
   109,308.51/163,985.81 = 35,430.75/x
3. Step 3: Cross multiply
   109,308.51x = 163,985.81 × 35,430.75
4. Step 4: Simplify right side
   109,308.51x = 5,810,140,060.50
5. Step 5: Solve for x
   x = 5,810,140,060.50/109,308.51
6. Step 6: Final answer
   x = 53,153.59