Finding the Fourth Proportional to 140,354.81, 193,685.00 and 88,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,354.81 : 193,685.00 = 88,699.50 : x
2. Step 2: Convert to fraction form
   140,354.81/193,685.00 = 88,699.50/x
3. Step 3: Cross multiply
   140,354.81x = 193,685.00 × 88,699.50
4. Step 4: Simplify right side
   140,354.81x = 17,179,762,214.00
5. Step 5: Solve for x
   x = 17,179,762,214.00/140,354.81
6. Step 6: Final answer
   x = 122,402.38